Talks/Seminars
Here you find the upcoming and past talks and colloquia. The colour code and abbreviations:
HS: Hörsaal (Lecture Hall), SR: Seminarraum (Seminar room), URZ Universitätsrechenzentrum (Computer Center)
| Seminar of the Institute | Quantum Theory Seminar |
| General Relativity Seminar | Seminar of the Helmholtz Institute |
| Colloquium of the Faculty | Other Talks |
| Seminar of Research Training Group |
HS: Hörsaal (Lecture Hall), SR: Seminarraum (Seminar room), URZ Universitätsrechenzentrum (Computer Center)
Upcoming Talks
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Calendar
You can also access a full calendar with extended functionality. | ||||||||||||||||||||||||||||||||||||
Past Talks
Talks from 2016-10-01 up to Today
| Thu, 2018-02-22 14:15 | ||
| Gauged Baby Skyrme Model with and without Chern-Simons term Albert Samoilenka, Department of Physics, Minsk | ||
| Mon, 2018-02-05 16:15 | (Hörsaal 1 Abbeanum, Fröbelstieg 1 (PAF Kolloquium)) | |
| Kann die Hypothese, dass Dunkle-Materie-Teilchen existieren, mit Astronomischen Daten falsifiziert werden? Prof. Dr. Pavel Kroupa Universität Bonn | ||
| Tue, 2018-01-30 16:15 | ||
| Tails of steady states and non-Killing horizons (Dr. Benjamin Withers, Geneva) | ||
| Wed, 2018-01-24 16:15 | ||
| Gravitational Waves and Numerical Relativity Prof. Harald Pfeiffer, AEI Potsdam Abstract: The past two years have witnessed the advent of gravitational wave (GW) astronomy led by the Advanced LIGO and Virgo GW detectors, which have announced the observation of six binary black holes and one binary neutron star. GW astronomy relies on knowledge of the gravitational waveforms for a variety of reasons: To design the search strategies to detect gravitational waves, to measure masses, spins and tidal parameters of the coalescing compact objects, and also to test general relativity and to search for signatures of physics beyond classical general relativity. This talk summarizes the GW observations of LIGO and Virgo, and elucidates the interplay between data-analysis and waveform modeling. Particular emphasis will be paid to numerical relativity simulations, the only means to compute the gravitational waves emitted during the genuinely nonlinear and dynamic late inspiral and merger phase of compact object binaries. | ||
| Tue, 2018-01-23 16:15 | (SR 5, Helmholtzweg 4) | |
| On Spectral Properties of Spin-Boson Models Talk by Markus Lange Abstract: We consider a quantum mechanical system, which is modeled by a Hamiltonian acting on a finite dimensional space with degenerate eigenvalues interacting with a field of relativistic bosons. Provided a mild infrared assumption holds, we prove existence of the ground state eigenvalues and ground state eigenvectors using operator theoretic renormalization. We show that the eigenvectors and eigenvalues are analytic functions of the coupling constant in a cone with apex at the origin. | ||
| Wed, 2018-01-17 16:15 | ||
| Canceled Dr. Andreas Ringwald (DESY, Hamburg) | ||
| Tue, 2018-01-16 16:15 | (SR 5, Helmholtzweg 4) | |
| Spin memory effect and charges of the extended BMS algebra Speaker: Dr. David A. Nichols Room: SR 5 Helmholtzweg 4 Abstract: The gravitational-wave memory effect is an unusual prediction of general relativity characterized by an asymptotically constant change in the gravitational-wave strain between early and late times. It produces a measurable effect for freely falling observers (a lasting displacement), it is generated by fluxes of matter and gravitational waves near null infinity, and it is closely related to the symmetry group of asymptotically flat spacetimes, the Bondi-Metzner-Sachs (BMS) group. Recently, however, there have been proposals that the symmetries of asymptotically flat spacetimes are the larger, extended BMS algebra. There are finite charges related to these additional symmetries, and changes in these charges produce a new kind of memory effect called spin memory. In this talk, I will introduce and discuss the gravitational-wave memory effect, the spin memory, and the conserved charges related to the extended BMS algebra. I will also discuss how these memory effects could be measured from binary black hole mergers using ground- and space-based gravitational-wave detectors. | ||
| Mon, 2018-01-15 16:15 | (Hörsaal 1 Abbeanum, Fröbelstieg 1 (PAF Kolloquium)) | |
| Weyl Semimetals and beyond! Prof. Dr. Claudia Felser Max-Planck-Institute for Chemical Physics of Solids, Dresden | ||
| Wed, 2018-01-10 17:00 | (HS 2, Abbeanum) | |
| Schwarze Löcher in Kaluza-Klein-Theorie Verteidigung der Dissertation von Michael Kalisch | ||
| Mon, 2018-01-08 16:15 | (Hörsaal 1 Abbeanum, Fröbelstieg 1 (PAF Kolloquium)) | |
| Habilitationsvorstellung " Laboratory astrophysics: spectroscopy and instrumentation for the gas phase and the solid state" Dr. Alexey Potapov Laborastrophysik-Gruppe | ||
| Wed, 2017-12-13 10:15 | ||
| Solution of sign-problem in 3d Potts-model at finite chemical potential Prof. Urs Wenger (Uni Bern) | ||
| Tue, 2017-12-12 17:15 | (HS 2, Helmholtzweg 5) | |
| Promotionsverteidigung: Dreidimensionale Vier-Fermion-Theorien mit exakter chiraler Symmetrie auf dem Gitter Verteidigung der Doktorarbeit von Daniel Schmidt Nach einer Einführung in spontane Symmetriebrechung werden neue Ergebnisse für die kritischen Exponenten des Gross-Neveu-Modells und Resultate bezüglich der kritischen Flavourzahl des Thirring-Modells präsentiert. | ||
| Mon, 2017-12-11 16:15 | (Hörsaal 1 Abbeanum, Fröbelstieg 1 (PAF Kolloquium)) | |
| Der Mechanismus von Antikythera Dr. Rita Gautschy Universität Basel | ||
| Thu, 2017-12-07 14:15 | (SR 5, Helmholtzweg 4) | |
| Scalar and vector charmonium resonances on the lattice Stefano Piemonte University of Regensburg | ||
| Wed, 2017-12-06 16:15 | (HS 2, Abbeanum) | |
| Short Gama-Ray Bursts: an observer's view Dr. Sylvio Klose, Landessternwarte Tautenburg | ||
| Tue, 2017-12-05 16:15 | (SR 5, Helmholtzweg 4) | |
| Simulating Binary Neutron Star Mergers in the Multi-Messenger Era Prof. Bruno Giacomazzo (University of Trento) Abstract: I will present results of fully general relativistic magnetohydrodynamic (GRMHD) simulations of binary neutron star mergers performed by my group in Trento. Thanks to the detection of GW170817 the new era of multi-messenger astrophysics has finally started. That detection provided us with evidence for the first time of the connection between binary neutron star mergers and short gamma-ray bursts as well as other electromagnetic signals, such as the predicted kilonova emission. Numerical simulations of binary neutron stars have helped in the study of the dynamics of these systems during the last phases of inspiral, merger, and post-merger evolution. In this talk I will present results of numerical simulations performed by my group in Trento and that focused in particular on the effects that magnetic fields may have both in powering short gamma-ray bursts and in affecting the gravitational wave emission. | ||
| Mon, 2017-12-04 16:15 | (Hörsaal 1 Abbeanum, Fröbelstieg 1 (PAF Kolloquium)) | |
| "The Physics Nobel Prize 2017: Gravitational Waves" Herr Prof. Dr. B. Brügmann und Herr Dr. R. Nawrodt | ||
| Wed, 2017-11-29 14:30 | (HS3, Abbeanum) | |
| QCD matter with isospin-asymmetry and compact stars Gergely Endrödi Goethe University Frankfurt | ||
| Mon, 2017-11-27 16:15 | (Hörsaal 1 Abbeanum, Fröbelstieg 1 (PAF Kolloquium)) | |
| Proxima b and beyond Dr. Guillem Anglada Escudé Queen Mary University of London | ||
| Wed, 2017-11-22 16:15 | (HS 2, Abbeanum) | |
| Gravitational waves, black holes and their interaction: a global perspective Prof. J. Frauendiener, University of Otago Abstract: It is well known that gravitational waves interact in a non-linear way. This makes it difficult to describe them rigourously. The cleanest description is based on a certain conformal invariance of the Einstein equations — a fact which was established by R. Penrose and was used by H. Friedrich to prove several important global results for general relativistic space-times. The so called conformal field equations implement this conformal invariance on the level of partial differential equations. They provide various well-posed initial (boundary) value problems for use in different situations. The talk will give a computational perspective on the non-linear interaction of plane gravitational waves and also present preliminary results of a simulation of the behaviour of an initially spherically symmetric black hole under the impact of a gravitational wave burst. | ||
| Wed, 2017-11-22 10:30 | (HS 2, Abbeanum) | |
| event without name Verteidigung Masterarbeit Tobias Felkl | ||
| Tue, 2017-11-21 17:15 | (HS 2, Helmholtzweg 5) | |
| Promotionsverteidigung: Nichtlineare Wechselwirkungen von Gravitationswellen Disputation von Stefan Palenta Nach einer ausführlichen Einleitung zu Gravitationswellen und nichtlinearen Effekten werden die Grundlagen einer neuen Lösungstechnik für das charakteristische Anfangswertproblem kollidierender ebener Gravitationswellen vorgestellt. Unter Annahme einer ebenen Symmetrie vereinfachen sich die Einstein-Gleichungen zur Ernst-Gleichung. Diese nichtlineare partielle Differentialgleichung wird im Rahmen der inversen Streumethode zunächst in ein überbestimmtes System linearer Differentialgleichungen und schließlich in ein Riemann-Hilbert Problem überführt. Mehrdeutigkeiten in dessen Lösung führen zur Konstruktion einer ganzen Familie exakter Raumzeiten, welche die eigentliche Lösung des Anfangswertproblems verallgemeinert. Deshalb kann die vorgestellte Technik auch als eine interessante Methode zur Lösungserzeugung dienen. Das Verfahren wird anhand der Erweiterung der Szekeres-Klasse von Wellenkollisionsraumzeiten demonstriert. Die dadurch erhaltene Lösung beinhaltet als Grenzfall einen neuen Typ impulsiver Gravitationswellen mit zirkularer Polarisation. | ||
| Tue, 2017-11-21 15:30 | (SR 102 Abbeanum) | |
| Magnetic fields near deformed black holes Dr. Norman Gürlebeck, Zentrum für angewandte Raumfahrttechnologie und Mikrogravitation Bremen | ||
| Mon, 2017-11-20 16:15 | (Hörsaal 1 Abbeanum, Fröbelstieg 1 (PAF Kolloquium)) | |
| Habilitationsvorstellung "Atomic Layer Deposition Materials for Optical Applications" Dr. Adriana Szeghalmi Institut für Angewandte Physik | ||
| Thu, 2017-11-16 14:15 | (SR 5, Helmholtzweg 4) | |
| An Introduction to asymptotically safe Quantum Gravity Stefan Lippoldt (University of Heidelberg) Abstract: This talk will start with a short reminder on the renormalization group concept, and how this is implemented in the flow equation. In the following I will relate this idea to quantum gravity (QG) focussing on the failure of perturbative QG. In the main part of this talk I will discuss how the asymptotic safety (AS) scenario may provide us with a non-perturbative way of quantizing gravity. For this I will look at pure QG, demonstrating that the inclusion of the famous Goroff-Sagnotti counter term of perturbative QG seems to pose no problem for the AS conjecture. Finally I will be concerned with the inclusion of matter. In particular I will have a glimpse at the intimate interplay of gravity and matter in the ultraviolet. | ||
| Tue, 2017-11-14 16:15 | (SR 5, Helmholtzweg 4) | |
| Real time dynamics, phase transitions and holography Dr. Jakub Jankowski, Jagiellonian University Abstract: I will review recent results concerning the dynamics of holographic systems exhibiting various types of phase transformations with a particular focus on first order transitions. The existence of the spinodal region is demonstrated within linear and nonlinear response theory. The applicability of hydrodynamics in the critical region of the phase diagram is shortly discussed. | ||
| Mon, 2017-11-13 16:15 | (Hörsaal 1 Abbeanum, Fröbelstieg 1 (PAF Kolloquium)) | |
| Plasma-based GeV Iepton accelerators Prof. Dr. Mike Downer University of Texas, Austin | ||
| Wed, 2017-11-08 16:15 | ||
| Thermodynamic formalism for Selberg zeta functions: old and new Prof. Anke Pohl Institut für Mathematik und Informatik Jena | ||
| Tue, 2017-11-07 16:15 | ||
| Entanglement entropy at non-equilibrium in holography Daniel Fernandez, University of Iceland | ||
| Thu, 2017-11-02 17:15 | (HS 2, Helmholtzweg 5) | |
| Disputation: Discontinuous Galerkin Methods for General Relativistic Hydrodynamics Disputation of Marcus Bugner Die Implementierung und Überprüfung einer neuen numerischen Methodik zur allgemeinrelativistischen Simulation von Neutronensternen wird vorgestellt. Zur Behandlung der hydrodynamischen Variablen wurde sowohl eine diskontinuierliche Galerkin-Methode, als auch ein Finite-Volumen-Verfahren auf krummlinigen Gittern implementiert. Zusätzlich wurden dem Code Techniken zur Schockerkennung und -behandlung hinzugefügt. Diese Bestandteile wurden in umfangreichen Tests validiert. Hierbei wurden numerische Fehler in der Massenerhaltung, in der Einhaltung von physikalischen Zwangsbedingungen und im Vergleich mit analytischen Lösungen betrachtet. Die zugehörigen Konvergenzordnungen aller Methoden wurden untersucht. Dabei wurde eine Konvergenzordnung ∼ 2 bei aktiver Schockbehandlung und mögliche Konvergenzordnungen > 2 für die reine diskontinuierliche Galerkin-Methode festgestellt. Weiterhin wurde bestätigt, dass die numerische Einhaltung der metrischen Identitäten essentiell für die Massenerhaltung in Fluiddynamik-Simulationen ist. Mit Hilfe der reinen diskontinuierlichen Galerkin-Methode konnten physikalische Systeme ohne Schocks, wie etwa die Michel-Bondi-Akkretion, erfolgreich simuliert werden. Bei Neutronensternsimulationen hingegen wurden numerische Instabilitäten an der Sternoberfläche und ein Verlust der Konvergenz beobachtet. Erst eine aktive Schockbehandlung erlaubt die stabile und numerisch konvergente Simulation von statischen, rotierenden oder oszillierenden Neutronensternen. Dank der vorgestellten Modifikationen des bamps Codes ist dieser nun in der Lage, die frontale Kollision zweier Neutronensterne zu simulieren. Neben der Extraktion des zugehörigen Gravitationswellensignals wurde die Simulation genutzt, um das nahezu ideale Skalierungsverhalten der Rechenzeit von bamps aufzuzeigen. The Talk will be held in English | ||
| Thu, 2017-10-26 14:15 | ||
| Asymptotically safe quantum gravity and the Standard Model Aaron Held Heidelberg University | ||
| Wed, 2017-10-25 17:00 | (HS 2, Abbeanum) | |
| Disputation: Anomalies within Magnetic Holography Disputation of Julian Leiber | ||
| Wed, 2017-10-25 15:00 | ||
| Gauge/gravity duality and quantum information Johanna Erdmenger (Würzburg) | ||
| Tue, 2017-10-24 16:15 | ||
| Pseudo-Goldstone excitations in chiral Yukawa-theories with quadratic explicit symmetry breaking Istvan Kaposvári Eotvos University | ||
| Thu, 2017-10-19 14:15 | (SR 5, Helmholtzweg 4) | |
| "Functional renormalization group and composite operators: concepts and applications" Carlo Pagani, Johannes Gutenberg-Universität Mainz abstract: After introducing composite operators in the functional renormalization group framework, we discuss their use paying particular attention to the Asymptotic Safety scenario for quantum gravity. Some considerations regarding the products of composite operators will also be given. | ||
| Wed, 2017-10-18 12:15 | (GRK Besprechungsraum, HHW5) | |
| Renormalization group analysis of momentum-dependent four-fermion interactions Lennart Dabelow (TPI Jena), Master thesis defense | ||
| Mon, 2017-10-16 16:15 | (Hörsaal 1 Abbeanum, Fröbelstieg 1 (PAF Kolloquium)) | |
| Habilitationsvorstellung "Nanoscale Imaging and Spectroscopy with High-Photon-Flux Table-top XUV Sources" Dr. Jan Rothhardt Institut für Angewandte Physik | ||
| Mon, 2017-09-04 16:00 | (HS 2, Abbeanum) | |
| Disputation: Asymptotic Safety in QFT - from quantum gravity to graphene Disputation of Benjamin Knorr | ||
| Wed, 2017-07-19 16:15 | (HS 2, Abbeanum) | |
| A c-Theorem for Two-dimensional Boundaries and Defects talk by Andy O'Bannon (University of Southampton) Abstract: I will present a proof for a monotonicity theorem, or c-theorem, for a three-dimensional Conformal Field Theory (CFT) on a space with a boundary, and for a higher-dimensional CFT with a two-dimensional defect. The proof is applicable only to renormalization group flows that preserve locality, reflection positivity, and Euclidean invariance along the boundary or defect, and that are localized at the boundary or defect, such that the bulk theory remains conformal along the flow. The method of proof is a generalization of Komargodski’s proof of Zamolodchikov’s c-theorem. The key ingredient is an external “dilaton” field introduced to match Weyl anomalies between the ultra-violet (UV) and infra-red (IR) fixed points. Reflection positivity in the dilaton’s effective action guarantees that a certain coefficient in the boundary/defect Weyl anomaly must take a value in the UV that is larger than (or equal to) the value in the IR. This boundary/defect c-theorem may have important implications for many theoretical and experimental systems, ranging from graphene to branes in string theory and M-theory. | ||
| Thu, 2017-07-06 14:15 | ||
| QED and QCD with massless fermions in three dimensions Prof. Rajamani Narayanan (Florida International U) | ||
| Mon, 2017-07-03 17:15 | (Hörsaal 1 Abbeanum, Fröbelstieg 1 (PAF Kolloquium)) | |
| Aktivität von kühlen Sternen Prof. Dr. Beate Stelzer Eberhard Karls Universität Tübingen | ||
| Fri, 2017-06-30 16:15 | (HS 2, Abbeanum) | |
| Geodätische in der Papapetrou-Majumdar-Metrik: Ein newtonsches Problem Verteidigung der Masterarbeit von Jan Schumm | ||
| Mon, 2017-06-26 17:15 | (Hörsaal 1 Abbeanum, Fröbelstieg 1 (PAF Kolloquium)) | |
| Lateral and vertical aggregation of molecular adlayers affecting their optical and electronic properties Dr. Roman Forker Institut für Festkörperphysik | ||
| Thu, 2017-06-22 14:15 | ||
| Renormalization of SU(2) Yang-Mills theory with Flow Equations Alexandre Efremov (CPHT, Ecole Polytechnique, Palaiseau) We give a proof of perturbative renormalizability of SU(2) Yang–Mills theory in four-dimensional Euclidean space. The main motivation is to present a proof which does not make appear mathematically undefined objects (as for example dimensionally regularized generating functionals). A large part of the proof is dedicated to bounds on massless correlation functions and to the restoration of the Slavnov-Taylor identities. | ||
| Tue, 2017-06-20 16:15 | (SR 5, Helmholtzweg 4) | |
| (Some aspects of) operator algebras and quantum physics Prof. Andrés Reyes Lega Universidad de los Andes Bogotá, Kolumbien Abstract After briefly reviewing some of the basic notions of operator algebras that are relevant for the algebraic approach to quantum physics, I will discuss two classes of C*-algebras that are relevant in quantum physics, namely the Weyl algebra and the CAR (or fermionic) algebra. Then, three examples of recent applications will be discussed: (i) the use of the GNS construction in the study of entanglement in systems of identical particles (ii) the Sorkin-Johnston state for scalar fields in curved spacetimes and (iii) the relation between the Shale-Stinespring theorem and the topology underlying the (thermodynamic) phase transition in the Ising model. | ||
| Mon, 2017-06-19 17:15 | (Hörsaal 1 Abbeanum, Fröbelstieg 1 (PAF Kolloquium)) | |
| Environmental & Biomedical Research with Laser Light Prof. Dr. Dr.-Ing. E. h. Jürgen Wolfrum Universität Heidelberg | ||
| Tue, 2017-06-13 16:15 | ||
| Catching ghosts — from unitarity to asymptotic safety Chris Ripken (Radboud University Nijmegen) Abstract: Higher derivative theories arise naturally in the context of effective quantum field theories. However, it is well-known that these theories generally are non-unitary. The purpose of this talk is two-fold. First, I will show why higher derivative theories are unitarity violating by discussing its Euclidean analogue, which is called Reflection Positivity. Secondly, we will consider a way of dealing with higher-derivative theories by means of the Renomalization Group. A requirement similar to Asymptotic Safety may be imposed on the infrared side of the RG trajectory to provide a unitary EFT. | ||
| Mon, 2017-06-12 17:15 | (Hörsaal 1 Abbeanum, Fröbelstieg 1 (PAF Kolloquium)) | |
| Investigating dense relativistic plasmas using high intensity laser pulses and x-ray free electron lasers Dr. Christian Rödel Institut für Optik und Quantenelektronik | ||
| Thu, 2017-06-08 14:15 | ||
| Gauge theories at finite fermion density: avoiding the sign problem in the canonical formulation Prof. Urs Wenger (Uni Bern) Abstract: In this talk I discuss gauge theories at finite fermion density which, in general, suffer from a fermion sign problem. One approach to the sign problem is to use the canonical formulation where the fermion number is fixed. Using Wilson fermions on the lattice the canonical sectors of the theories can be obtained directly from transfer matrices explicitely defined through the fermion Dirac operator. As a first example, I consider supersymmetric SU(N) Yang-Mills theories in 0+1 dimensions and present some results concerning the moduli space of these theories. As a second example, I discuss QCD in the heavy-dense limit and show how the sign problem is avoided in the strong coupling limit. Finally, as a third example, related to heavy-dense QCD, I construct a cluster algorithm for the 3-state Potts model which solves the sign problem completely, even away from the strong coupling limit. | ||
| Wed, 2017-06-07 16:15 | ||
| Equilibrium configurations of normal matter with parametric transition to black holes Prof. Dr. Meinel | ||
| Tue, 2017-05-30 16:15 | (SR 5, Helmholtzweg 4) | |
| Challenges for Cosmological Simulations Dr. Klaus Dolag (Universitäts-Sternwarte München, Max-Planck-Institute für Astrophysik Garching) | ||
| Tue, 2017-05-30 12:00 | (HS 5 Abbeanum) | |
| Die Formfaktoren des Quark-Photon Vertex Milena Leutnant, FSU Jena (Verteidigung der Masterarbeit) | ||
| Mon, 2017-05-29 17:15 | (Hörsaal 1 Abbeanum, Fröbelstieg 1 (PAF Kolloquium)) | |
| Exploring the high-energy Universe Prof. Dr. Stefan Funk Friedrich-Alexander Universität Erlangen-Nürnberg | ||
| Mon, 2017-05-29 16:00 | (SR 5, Helmholtzweg 4) | |
| Gravitational Waveform modeling: Phenomenological models Prof. Mark Hannam, Cardiff university, Cardiff, U.K. | ||
| Mon, 2017-05-22 18:15 | (Hörsaal 1 Abbeanum, Fröbelstieg 1 (PAF Kolloquium)) | |
| Nanotribologie: Reibung (und mehr) auf atomarer Ebene Prof. Dr. Enrico Gnecco Otto-Schott-Institut für Materialforschung | ||
| Thu, 2017-05-18 14:15 | ||
| Baryons as relativistic three-quark bound states Dr. Gernot Eichmann (Uni Lissabon) | ||
| Tue, 2017-05-16 16:15 | (SR 5, Helmholtzweg 4) | |
| QCD's correlation functions and their relevance for hadron physics Gernot Eichmann (University of Lisbon) Abstract: I will use the baryon spectrum as a motivation to give a brief introduction to Dyson-Schwinger equations, which are nonperturbative tools to determine the n-point functions of QCD. I will discuss some examples for the quark and gluon propagators, the quark-gluon vertex and three-gluon vertex. In combination with Bethe-Salpeter equations, these methods allow one to calculate hadron properties such as their masses, form factors and scattering amplitudes. | ||
| Mon, 2017-05-15 17:15 | (Hörsaal 1 Abbeanum, Fröbelstieg 1 (PAF Kolloquium)) | |
| Max Wien - ein politischer Physiker zwischen Grundlagenforschung und Technik Dr. Stefan Wolff Deutsches Museum München | ||
| Thu, 2017-05-11 14:15 | ||
| Decoupling of the charm quark Prof. Dr. Francesco Knechtli (Bergische Universität Wuppertal) | ||
| Tue, 2017-05-09 16:15 | (SR 5, Helmholtzweg 4) | |
| Shnol type Theorem for the Agmon ground state Dr. Siegfried Beckus (Technion Haifa) The celebrated Shnol theorem 4 asserts that every polynomially bounded generalized eigenfunction for a given energy E∈R associated with a Schrödinger operator H implies that E is in the L2-spectrum of H. Later Simon 5 rediscorvered this result independently and proved additionally that the set of energies admitting a polynomially bounded generalized eigenfunction is dense in the spectrum. A remarkable extension of these results hold also in the Dirichlet setting 1, 2. It was conjectured in 3 that the polynomial bound on the generalized eigenfunction can be replaced by an object intrinsically defined by H, namely, the Agmon ground state. During the talk, we positively answer the conjecture indicating that the Agmon ground state describes the spectrum of the operator H. Specifically, we show that if u is a generalized eigenfunction for the eigenvalue E∈R that is bounded by the Agmon ground state then E belongs to the L2-spectrum of H. Furthermore, this assertion extends to the Dirichlet setting whenever a suitable notion of Agmon ground state is available. 1 A. Boutet de Monvel, D. Lenz, and P. Stollmann, Sch'nol's theorem for strongly local forms, 189-211, Israel J. Math., vol. 173, 2009. 2 A. Boutet de Monvel and P. Stollmann, Eigenfunction expansions for generators of Dirichlet forms, 131-144, J. Reine Angew. Math. vol. 561, 2003. 3 B. Devyver, M. Fraas, and Y. Pinchover, Optimal Hardy weight for second-order elliptic operator: an answer to a problem of Agmon, 4422-4489, J. Funct. Anal., vol. 266, no. 7, 2014. 4 È. È. Šhnol', On the behavior of the eigenfunctions of Schrödinger's equation, 273-286, Mat. Sb. (N.S.), vol. 42, (84), 1957; erratum, 259, vol. 46, (88), 1957 (Russian). 5 B. Simon, Spectrum and continuum eigenfunctions of Schrödinger operators, 347-355, J. Funct. Anal., vol. 42, no. 3, 1981. | ||
| Mon, 2017-05-08 17:15 | (Hörsaal 1 Abbeanum, Fröbelstieg 1 (PAF Kolloquium)) | |
| Gasspektroskopie unter Hochdruck-/Hochtemperaturbedingungen Dr. Roland Ackermann Institut für Angewandte Physik | ||
| Tue, 2017-04-25 16:15 | (SR 5, Helmholtzweg 4) | |
| Simulating Generic Binary Neutron Star Mergers Dr. Tim Dietrich (Max Planck Institut for Gravitational Physics, Potsdam) | ||
| Mon, 2017-04-24 17:15 | (Hörsaal 1 Abbeanum, Fröbelstieg 1 (PAF Kolloquium)) | |
| event without name Prof. Dr. Hardy Gross MPI Halle (Saale) | ||
| Thu, 2017-04-20 14:15 | ||
| Signatures of axial anomaly in real-time evolution of quantum chiral plasma Dr. Pavel Buividovich (Uni Regensburg) | ||
| Mon, 2017-04-10 17:15 | (Hörsaal 1 Abbeanum, Fröbelstieg 1 (PAF Kolloquium)) | |
| Laser als universelles Werkzeug zur Synthese, Bearbeitung und Funktionalisierung von Werkstoffen Dr. Stephan Gräf Otto-Schott-Institut für Materialforschung | ||
| Fri, 2017-03-17 14:00 | ||
| Master-Verteidigung: Weltliniennumerik auf moderner Rechnerarchitektur Sabrina Kaack (FSU Jena) | ||
| Wed, 2017-02-08 17:00 | (HS 2, Helmholtzweg 5) | |
| Disputation: Signaturen des Quantenvakuums in inhomogenen elektromagnetischen Feldern Disputation of Nico Seegert | ||
| Tue, 2017-02-07 16:00 | (HS 2, Helmholtzweg 5) | |
| Disputation: From Condensed matter to Higgs Physics - Solving Functional Renormalization Group Equations Globally in Field Space Disputation of Julia Borchardt | ||
| Tue, 2017-01-31 12:00 | (HI Jena, Seminarraum, Fröbelstieg 3) | |
| Theoretische Analyse der Vakuumdoppelbrechung im Feld eines Hochintensitätslasers Masterverteidigung Chantal Sundqvist | ||
| Mon, 2017-01-30 17:15 | (HS 1, Abbeanum) | |
| Habilitationsvorstellung: SUSY photonics - harnessing advanced symmetries for next-generation optical circuitry Dr. Matthias Heinrich Institut für Angewandt Physik, FSU Jena | ||
| Mon, 2017-01-30 10:15 | (SR 102, Abb.) | |
| Looking for Beyond the Standard Model in Dark Matter Prof. Veronica Sanz (University of Sussex) | ||
| Fri, 2017-01-27 14:30 | (HS 2, Abbeanum) | |
| Towards Higher-Spin Gravity in non-AdS backgrounds Masterverteidigung von Michel Pannier | ||
| Wed, 2017-01-25 16:15 | (HS 2, Abbeanum) | |
| Ernst Mach and Machian effects in general relativity Prof. Jiri Bicak, Charles University (Prague) Abstract: I shall start with some remarks on Ernst Mach (1838-1916), who spent many years at the University in Prague and at the Vienna University. I briefly recall his and Einstein's ideas on the origin of inertia and their influence on the construction of general relativity. I mention the direct experiment verifying relativistic dragging/gravitomagnetic effects - the Gravity Probe B; the results were summarized only recently. I shall then turn to several specific general-relativistic problems illustrating the gravitomagnetic effects: the dragging of particles and fields around a rotating black hole, dragging inside a collapsing slowly rotating spherical shell of dust, linear dragging in a static situation, and the way how Mach's principle can be formulated in cosmology. A more detailed discussion will be devoted to the dragging effects by rotating gravitational waves. | ||
| Tue, 2017-01-24 16:15 | (SR 5, Helmholtzweg 4) | |
| Non-equilibrium dynamics Prof. Kehrein Universität Göttingen | ||
| Mon, 2017-01-23 17:15 | (HS 1, Abbeanum) | |
| Subzyklen-Quatenphysik der Elektronen und Photonen Prof. Dr. Alfred Leitenstorfer Universität Konstanz | ||
| Tue, 2017-01-17 16:15 | ||
| Elementary considerations concerning the relation between quantum mechanics and gravity Prof. N. Giulini Universität Hannover | ||
| Fri, 2017-01-13 16:15 | (HS 2, Abbeanum) | |
| Near-Horizon-Geometrien im Formalismus der Ernst-Gleichungen Verteidigung der Masterarbeit von Sebastian Ulbricht | ||
| Wed, 2017-01-11 16:15 | (HS 2, Abbeanum) | |
| Theory and Observation of Black-Hole Binaries Frank Ohme (LIGO) Abstract: Orbiting black-hole binaries emit gravitational waves. Details of these signals have been studied theoretically with ever increasing sophistication over decades, and with the breakthrough discovery of the Laser Interferometer Gravitational-wave Observatory (LIGO) in September 2015 we have gained access to direct measurements of black-hole mergers. In my talk, I will both summarise the observations LIGO has made in its first observing run and highlight the progress and challenges of theoretical models that play a crucial role in interpreting the experimental data. | ||
| Tue, 2017-01-10 16:15 | (SR 5, Helmholtzweg 4) | |
| Black Holes in a Haystack: Search and Interpretation of Gravitational Waves Frank Ohme (LIGO) Abstract: Last year, the Laser Interferometer Gravitational-Wave Observatory (LIGO) announced the discovery of gravitational waves from black-hole binaries that collide in the most energetic collisions we have observed in the Universe so far. I will give an introduction to the analysis methods behind these great discoveries and show how theoretical models of gravitational-wave signals help us decipher weak spacetime oscillations that are buried in instrument noise. | ||
| Mon, 2017-01-09 17:15 | (HS 1, Abbeanum) | |
| event without name Prof. Dr. Wilfried Wurth Deutsches Elektronen-Synchroton (DESY) | ||
| Tue, 2016-12-20 17:15 | (HS 2, Helmholtzweg 5) | |
| Disputation: Behandlung supersymmetrischer Systeme mittels der funktionellen Renormierungsgruppe Disputation of Tobias Hellwig | ||
| Tue, 2016-12-20 15:15 | ||
| Real-time properties & transport in QCD Talk by Prof. Dr. Jan M. Pawlowski, University of Heidelberg | ||
| Mon, 2016-12-19 17:15 | (HS 1, Abbeanum) | |
| The Little Bang: the ALICE experiment at the CERN LHC Prof. dr. Paolo Giubellino GSI Darmstadt | ||
| Fri, 2016-12-09 16:15 | (HS 2, Abbeanum) | |
| Gravitationskollaps einer Staubkugel Verteidigung der Masterarbeit von Dorothee Tell | ||
| Mon, 2016-12-05 17:15 | (HS 1, Abbeanum) | |
| Photoluminescence, Density of States and Solar Cells Prof. Dr. Susanne Siebentritt Universität Luxemburg | ||
| Tue, 2016-11-29 16:15 | (SR 5, Helmholtzweg 4) | |
| Group field theory Daniele Oriti | ||
| Mon, 2016-11-28 17:15 | (HS 1, Abbeanum) | |
| Habilitationsvorstellung: Von Zufallszahlen zur Physik der Hadronen Dr. André Sternbeck Theoretisch-Physikalisches Institut, FSU Jena | ||
| Thu, 2016-11-24 17:15 | (HS 2, Helmholtzweg 5) | |
| Disputation: Electron-Positron Paarproduktion in starken elektrischen Feldern Disputation of Alexander Blinne: "Electron-Positron Paarproduktion in starken elektrischen Feldern" | ||
| Thu, 2016-11-24 14:15 | (SR 5, Helmholtzweg 4) | |
| Holography at QCD-Tc Prof. Burkhard Kämpfer (TU Dresden & HZDR) | ||
| Tue, 2016-11-22 16:15 | ||
| Experiments to search light-weight, weakly coupled particles beyond the Standard Model Speaker: Dr. Babette Döbrich Abstract: An increasing number of experiments is searching for new particle physics outside the range of high-energy colliders. New particles could be hiding at comparably low mass but very weak coupling and are hypothesized to explain Dark Matter. In my talk I will introduce the motivation and search for a selection of models. I will detail in particular on ongoing searches at the NA62 experiment at CERN and the FUNK experiment at KIT. | ||
| Mon, 2016-11-21 17:15 | (HS 1, Abbeanum) | |
| Habilitationsvorstellung: High-power Terahertz pulse trains from laserdriven particle accelerators Dr. Amrutha Gopal Institut für Optik und Quantenelektronik, FSU Jena | ||
| Thu, 2016-11-17 14:15 | ||
| How general is holography? Max Riegler (Unuiversite Libre de Bruxelles) | ||
| Mon, 2016-11-07 17:15 | (HS 1, Abbeanum) | |
| Tomographie der Sonnenatmosphäre Prof. Dr. Arnold Hanslmeier Universität Graz | ||
| Fri, 2016-11-04 15:15 | (HS 2, Abbeanum) | |
| Voruntersuchungen zur Simulation von Supersymmetrischen Gittereichtheorien Marc Steinhauser Masterverteidigung | ||
| Fri, 2016-11-04 14:15 | (HS 2, Abbeanum) | |
| Functional Renormalization Group Approach for the 3-Dimensional N=2 Wess-Zumino-Modell Polina Feldmann (Jena) Masterverteidigung | ||
| Thu, 2016-11-03 14:15 | ||
| Worldline Formalism and noncommutative QFT Sebastián Franchino-Viñas (La Plata / TPI) Abstract: The Worldline Formalism possesses great advantages in comparison with a Feynman's diagram analysis of a quantum field theory. On the other hand, noncommutative quantum field theories are probably one of the most important candidates to be an effective theory of quantum gravity. We then show how to implement the worldline formalism in noncommutative theories. The result is a master formula for the 1-loop effective action that is applied to a number of scalar models — among them the Grosse-Wulkenhaar model a model with some unusually kind properties of renormalization. As a byproduct we find an expression for the small propertime expansion of general nonlocal operators' Heat Kernel. | ||
| Fri, 2016-10-28 16:00 | (HS 2, Abbeanum) | |
| General Relativity Seminar Henriette Wirth Verteidigung Masterarbeit: "The Fully Pseudospectral Time Evolution of a Spherically Symmetric, Oscillating Newtonian Star Model" | ||
| Fri, 2016-10-28 14:30 | (HS 2, Abbeanum) | |
| Interfaces in holographic Weyl semimetals Masterverteidigung von Markus Heinrich | ||
| Thu, 2016-10-27 14:15 | (SR 5, Helmholtzweg 4) | |
| Holography with momentum dissipation and massive gravity: a status report Matteo Baggioli I will review the state of the art of holographic homogeneous models without translational invariance. Particular emphasis will be put on holographic massive gravity as an effective and efficient way of dissipating momentum in the context of the gauge-gravity duality. After a broad introduction and motivation of the framework I will describe the phenomenological implications concerning charge and momentum transport of the CFT duals. I will finally analyze the possible existence of universal bounds on physical quantities and the description of strongly coupled insulators within this setup. | ||
| Wed, 2016-10-26 16:15 | ||
| Wave equations in curved backgrounds: numerical applications to black-hole quasi-normal modes and AdS/CFT correspondence Rodrigo Panosso Macedo (FSU Jena) Abstract: We present a spectral representation of solutions to relativistic wave equations formulated on a Schwarzschild-black-hole background. We first consider an asymptotically flat spacetime and, after performing a Laplace transformation on the wave equation in question, we present an algorithm for obtaining all ingredients of the desired spectral decomposition, including quasi-normal modes, quasi-normal mode amplitudes as well as the jump of the Laplace-transform along the branch cut. The work explains extensively this procedure and includes detailed discussions of relevant aspects, such as the contribution of infinity frequencies modes to the early time response of the black hole and its relation to the QNM-amplitudes grow’s rate. In a second part, we employ the same strategy to study the solution of wave equations on an asymptotically AdS background. The system models the response of the chiral magnetic effect due to continuous quenches induced by time dependent electric fields via AdS/CFT correspondence and here, we focus on the possibility of considering the asymptotic growth rate of the amplitudes as a well defined notion of initial time scale for linearized systems. | ||
| Mon, 2016-10-24 18:00 | (Aula) | |
| Festveranstaltung zur Verleihung der Heraeus Senior-Professur - Der Goldene Schnitt in der klassischen Physik Prof. Dr. Karl-Heintz Lotze Heraeus Senior-Professur | ||
| Thu, 2016-10-20 14:15 | ||
| On low-energy effective actions in supersymmetric field models in three and six dimensions Dr. Boris Merzlikin, University Tomsk, Russia | ||
| Wed, 2016-10-19 17:00 | (Rosensäle) | |
| Einsteins Allgemeine Relativitätstheorie: Vom Alltag bis zu den neusten Entwicklungen Prof. Dr. Gerhard Schäfer "Phänomene der allgemeinen Relativitätstheorie" aus der Sicht der Physik Prof. Dr. Gerhard Huisken "Geometrie und Gravitation" aus der Sicht der Mathematik | ||
| Thu, 2016-10-13 14:15 | (SR 5, Helmholtzweg 4) | |
| On low-energy effective actions in supersymmetric field models in three and six dimensions Dr. Boris Merzlikin, University Tomsk, Russia | ||
Talks from 2016-03-01 up to 2016-09-30
| Wed, 2016-09-28 16:15 | (HS 2, Abbeanum) | |
| Instabilities of Coulomb phases and quark confinement in QCD Manuel Asorey, University of Zaragoza, Spain | ||
| Thu, 2016-09-08 14:15 | (SR 5, Helmholtzweg 4) | |
| Convexity at finite temperature and non-extensive thermodynamics Dr. Jean Alexandre (King's College London) | ||
| Wed, 2016-08-17 16:15 | ||
| Astrophysical jets: a new numerical approach to force-free electrodynamics Dr. Federico Carrasco (CONICET, Ciudad Universitaria Cordoba): Force-Free Electrodynamics (FFE) is a non-linear system of equations modeling the evolution of the electromagnetic field in the presence of a magnetically dominated relativistic plasma. This configuration arises on several astrophysical scenarios of interest such as pulsars or active galactic nuclei. In this talk, I will present a new numerical implementation of FFE around a Kerr black hole, which reproduce standard results regarding jet formation and energy extraction by means of a truly stationary electromagnetic configuration. The novelty of our approach is three-folded: i) We use the multi-block technique (1) to represent a domain with S2x R+ topology within a stable numerical scheme. ii) We employ as evolution equations those arising from a covariant hyperbolization of the FFE system (3), which we have developed using the generalized symmetric hyperbolic formalism of Geroch (2). iii) We implement stable and constraint-preserving boundary conditions, which represents an outer region given by a uniform magnetic field aligned/misaligned with the symmetry axis. (1) L. Lehner O. Reula and M. Tiglio, Multi-block simulations in general relativity: high order discretizations, numerical stability, and applications, Class.Quant.Grav. 22 (2005), 5283-5322. (2) R. Geroch, Partial di erential equations of physics, General Relativity, Aberdeen, Scotland (1996), 19-60. (3) F. Carrasco and O. Reula, Covariant hyperbolization of force-free electrodynamics, Physical Review D 93 (2016), no. 8, 085013. | ||
| Thu, 2016-07-14 14:15 | (SR 5, Helmholtzweg 4) | |
| DC conductivities in Holography Luis Melgar Imperial College London | ||
| Wed, 2016-07-13 14:15 | (HS 2, Abbeanum) | |
| Properties of Higher Spin Black Holes from CFT Masterverteidigung Benjamin Hinrichs | ||
| Thu, 2016-07-07 14:15 | (SR 5, Helmholtzweg 4) | |
| Heavy mesons and tetraquarks from lattice QCD Prof. Dr. Marc Wagner, Univ. Frankfurt | ||
| Wed, 2016-07-06 16:15 | ||
| Numbers and functions in quantum field theory Dr. Oliver Schnetz, Univ. Erlangen Quantum field theories describe the fundamental interactions between physical particles. Perturbation theory organizes quantum field theory calculations as expansions in Feynman graphs. Each Feynman graph stands for a multi-dimensional integral over a differential form which is a rational function with integer coefficients. We report on the mathematical structures of the numbers and functions which arise from these integrals. We also indicate how these structures can be used to perform (some) quantum field theory calculations to very high order. | ||
| Tue, 2016-07-05 16:15 | ||
| Illuminating the dark side: new approaches to search for the dominating matter in our universe. Dr. Axel Lindner DESY Hamburg | ||
| Fri, 2016-07-01 16:15 | ||
| TBA | ||
| Tue, 2016-06-28 16:15 | (SR 5, Helmholtzweg 4) | |
| Non-commutative quasicrystals II Felix Pogorzelski, Technion Haifa, Israel Abstract: This is a continuation of last week's talk of quasicrystals in possibly non-commutative lcsc groups. We introduce the notion of Gelfand pairs which are a powerful tool to develop a spherical Fourier theory on the spaces we have in mind. The corresponding abstract Fourier transform allows us to define the spherical diffraction measure for non-commutative quasicrystals. Generalizing the classical (abelian) case, we explain why regular cut-and-project sets arising from cocompact lattices amount to pure point diffraction. Joint work with Michael Björklund and Tobias Hartnick. | ||
| Tue, 2016-06-28 14:15 | (Seminarraum HI Jena, Fröbelstieg 3) | |
| Beyond the Standard Model (of High-Intensity Laser Particle Interactions) Prof. Thomas Heinzl (Plymouth University) The interaction of matter with high-intensity lasers is traditionally described by modelling the laser as a plane wave background field. This description becomes invalid (i) at ultra-high intensities requiring strong focussing and (ii) whenever there is substantial back-reaction on the external field yielding e.g. beam depletion. I will describe a number of theoretical attempts aimed at improving the current methodology to deal with these rather extreme, but soon experimentally feasible, conditions. | ||
| Mon, 2016-06-27 17:15 | (Hörsaal 1 Abbeanum, Fröbelstieg 1 (PAF Kolloquium)) | |
| Habilitationsvorstellung: Tailoring Light Fields with Silicon Hygens' Metasurfaces Dr. Isabelle Staude, Abbe Center of Photonics, FSU Jena | ||
| Wed, 2016-06-22 17:00 | (Hörsaal 1, Max-Wien-Platz) | |
| Physik in Hollywood Dr. Sascha Vogel (Fias Frankfurt) Funktionieren Laserschwerter wirklich? Wieso gewinnt James Bond immer & was hat Spiderman mit Physik zu tun? | ||
| Tue, 2016-06-21 16:15 | (SR 5, Helmholtzweg 4) | |
| Non-commutative quasicrystals I Felix Pogorzelski, Technion Haifa, Israel Abstract: The investigation of aperiodic point sets originates back to work of Meyer in the 70ies who pursued harmonic analysis on harmonious sets in Euclidean space. Shechtman's discovery of physical quasicrystals (1982) via laser experiments diffraction) triggered a boom of the mathematical analysis of the arising scatter patterns. In recent work with Michael Björklund and Tobias Hartnick, we developed a spherical diffraction theory for cut-and-project sets in general lcsc groups, thus advancing into the non-commutative world. This seminar aims at describing these non-commutative quasicrystals, as well as the dynamical systems which naturally arise from them. We explain further how to use these tools in order to derive the existence and the approximation of the autocorrelation measure. | ||
| Mon, 2016-06-20 17:15 | (HS 1, Abbeanum) | |
| Die Variabilität natürlicher NiTi-Oberflächen Dr. Andreas Undisz (Otto-Schott-Institut für Materialforschung) | ||
| Thu, 2016-06-16 14:15 | ||
| Center-symmetric perturbative expansion of SU(N) gauge theory Prof. M. Schaden (Rutgers University) | ||
| Wed, 2016-06-15 16:15 | (HS 2, Abbeanum) | |
| The cross-correlation search for stochastic and continuous gravitational wave sources Prof. Sanjeev Dhurandhar Abstract- The cross-correlation search can be used to map the stochastic gravitational wave (GW) background, as well as track continuous wave sources such as spinning neutron stars. An astrophysical GW background will likely arise from an incoherent superposition of unmodelled and/or unresolved sources and cosmological GWbackgrounds (CGWB) are also predicted in certain scenarios. The basic statistic used is the cross-correlation between the data from a pair of detectors. In order to ‘point’ the pair of detectors at different locations one must suitably delay the signal by the amount it takes for the GW to travel to both detectors corresponding to a source direction. Then the raw sky map of the GW background is the signal convolved with a beam response function that varies with location in the sky. The true sky map is obtained by numerically deconvolving the beam function in the integral (convolution) equation by using the maximum likelihood approach. We apply these methods to the Virgo cluster which could be "hot spot" of stochastic GW originating from rotating neutron stars which is a suitable source for this method. We then show how this method can be adapted to observe continuous wave sources such as spinning neutron stars. This method can be used as a trade-off between computational cost and sensitivity. This method can also be employed for LMXB searches such as Sco X-1. Work on how to speed up the searches is in progress. | ||
| Thu, 2016-06-09 14:15 | ||
| From three-dimensional Yang-Mills theory to QCD Dr. Markus Huber (Graz U.) | ||
| Wed, 2016-06-08 16:15 | (HS 2, Abbeanum) | |
| Dual Foliation Formulations of General Relativity or "how I learned to stop worrying and love coordinates" by Dr. David Hilditch, TPI Jena Abstract: When solving general relativity numerically for a given physical problem we must use a formulation of the field equations for which the resulting partial differential equation problem is well-posed. Building such a good formulation usually requires making a coordinate choice. This leads to the standard statement that `gauge freedom in general relativity is the choice of coordinates'. The latter two facts have long bothered me, because one of the first lessons in relativity is that coordinates should in some sense not matter. In my talk I will explain the solution to my earlier confusion. Time permitting I will also describe ongoing work to exploit the solution for practical calculations. | ||
| Tue, 2016-06-07 16:15 | (SR 5, Helmholtzweg 4) | |
| Constraints as evolutionary systems Prof. Racz Abstract: In this talk the constraint equations for smooth spaces satisfying Einstein's equations will be considered. It is shown that, regardless whether the primary space is Riemannian or Lorentzian, the constraints can always be put into the form of an evolutionary system comprised either by a first order symmetric hyperbolic system and a parabolic equation or, alternatively, by a strongly hyperbolic system subsided by an algebraic relation. The (local) existence and uniqueness of solutions to these evolutionary systems is also shown verifying thereby that the proposed evolutionary approach provides a viable alternative to the apparently unique conformal method. | ||
| Fri, 2016-06-03 16:15 | (HS 2, Abbeanum) | |
| Surrogate models of gravitational waveforms from numerical relativity simulations of binary black hole mergers Jonathan Blackman, Caltech Abstract: GW150914 was the first detection of gravitational waves from a binary black hole merger, bringing us into the era of gravitational wave astronomy. From such gravitational wave detections, we can put constraints on deviations from general relativity (GR), as well as measure the masses and spins of the black holes involved in the merger. Such measurements require knowledge of the gravitational waveforms predicted by GR for all relevant masses and spins. Numerical relativity (NR) simulations are now sufficiently robust that we can accurately simulate binary black hole mergers and obtain the waveform for all but the most extreme parameters, but they are too computationally expensive for a dense coverage of the parameter space. The effective-one-body model and phenomenological waveform models agree well with NR for the parameters of GW150914, but could be insufficiently accurate for estimating the parameters of a loud gravitational wave detection in other regions of the parameter space. NR surrogate models attempt to rapidly and accurately interpolate the waveforms from a set of NR simulations over a subset of parameter space. Using the Spectral Einstein Code (SpEC), we have built NR surrogate models for non-spinning binaries with mass ratios up to 10, and for spinning precessing binaries with a restricted spin direction on the smaller black hole. They typically perform an order of magnitude better than other waveform models when compared to NR waveforms which were not included in the surrogate training set, and can be used in gravitational wave parameter estimation. | ||
| Wed, 2016-06-01 16:15 | (HS 2, Abbeanum) | |
| Heavy dense QCD from an effective lattice theory Prof. Owe Philipsen (Uni Frankfurt) | ||
| Wed, 2016-05-25 16:15 | ||
| QCD phenomenology and hadron physics from supercomputers Dr. Andre Sternbeck, TPI Jena | ||
| Mon, 2016-05-23 17:15 | (Hörsaal 1 Abbeanum, Fröbelstieg 1 (PAF Kolloquium)) | |
| tba Prof. Dr. Christian Eggeling, Univ. of Oxford | ||
| Thu, 2016-05-19 14:15 | (SR 5, Helmholtzweg 4) | |
| Causal Space-time on a Null Lattice Prof. Dr. Martin Schaden, Rutgers University Abstract: I propose a discrete model of Quantum Gravity based on the same principle as the Global Positioning System: the intersection of forward light-cones from four spatially separate events (with some restrictions) determines another event. I show that a causal manifold can thus be described by a topologically hypercubic lattice with light-like links; the length of the spatial diagonal of each plaquette being determined by spinors describing the light-like edges. This lattice model has an SL(2,C) x U^4(1) structure group and is geometric. The description foliates in a causal and physically transparent manner. The observables, the most general local action and the integration measure of this model are all determined by this stucture group and for smooth configurations have well-known continuum limits. Consistency constraints on a configuration to describe a causal manifold are derived and a one-parameter ambiguity of the invariant integration measure is exploited to regularize the model. Finally the SL(2,C) structure group is uniquely localized and the integration measure expressed in terms of geometric invariants. Should time and interest permit, I will also discuss global issues and show numerical results on a small lattice describing the vicinity of the Big Bang in the (unphysical) limit where the cosmological term dominates the dynamics. | ||
| Tue, 2016-05-17 16:15 | (SR 5, Helmholtzweg 4) | |
| Quantum gravity aspects of black holes Prof. Ammon | ||
| Fri, 2016-05-13 10:30 | (SR 5, Helmholtzweg 4) | |
| Duality between higher spin gravity in (Anti-)deSitter spacetime and conformal field theories Masterverteidigung Attila Lüttmerding | ||
| Thu, 2016-05-12 14:15 | ||
| Spontaneous breaking of Lorentz symmetry in QED3 Dr. Lukas Janssen (TU Dresden) Abstract: The phase diagram of quantum electrodynamics in three space-time dimensions as a function of fermion flavor number N exhibits two well-known phases: at large N > Nc1 the system is in a conformal gapless state, while for small N < Nc2 the fermions are expected to develop a dynamical mass due to spontaneous chiral symmetry breaking. Using epsilon expansion near the lower critical dimension of two, in combination with the recent results on the generalization of the F theorem to continuous dimension, we show that Nc1 > Nc2. There is therefore an intermediate range of values of N at which a third phase is stabilized. We demonstrate that this phase is characterized by spontaneous breaking of Lorentz symmetry, in which a composite vector boson field acquires a vacuum expectation value with the fermions and the photon remaining massless. | ||
| Wed, 2016-05-11 16:15 | (HS 2, Abbeanum) | |
| Nonequilibrium entropy production for open quantum systems Prof. Eric Lutz (FAU Erlangen) Abstrakt: Entropy production is a fundamental quantity of nonequilibrium thermodynamics. We here discuss exact microscopic expressions for the nonequilibrium entropy production of closed and open quantum systems that are driven arbitrarily far from equilibrium, in particular beyond the linear response regime. We additionally consider the entropy production rate, which provides information about the speed of nonequilibrium processes, and show that they are bounded from above for quantum systems. The connection with the notion of quantum speed limit is addressed. | ||
| Wed, 2016-05-04 14:30 | ||
| Quasinormal modes in holographic s-wave superconductors Masterverteidigung von Johanna Mader | ||
| Tue, 2016-05-03 16:15 | (SR 5, HHW 4) | |
| Hawking Radiation Prof. Dr. Andreas Wipf, TPI Jena | ||
| Mon, 2016-05-02 17:15 | (Hörsaal 1 Abbeanum, Fröbelstieg 1 (PAF Kolloquium)) | |
| Wie entstanden die ersten festen Körper im jungen Sonnensystem? Prof. Dr. Jürgen Blum, TU Braunschweig | ||
| Wed, 2016-04-27 16:15 | ||
| Nonlinear evolution of perturbed anti-de Sitter spacetime Dr. Piotr Bizon (Krakow) Abstract: Dynamics of asymptotically AdS spacetimes is an interesting meeting point of fundamental problems in general relativity, PDE theory, theory of turbulence, and AdS/CFT correspondence. In my talk I will describe recent progress in understanding this problem, focusing on evidence for the instability of AdS spacetime. | ||
| Tue, 2016-04-26 17:15 | (HS 2, Helmholtzweg 5) | |
| Disputation "Untersuchungen von rotierenden und geladenen Staubscheiben mit hochgenauen Näherungslösungen und der Grenzübergang zu Schwarzen Löchern" Disputation of Martin Breithaupt | ||
| Tue, 2016-04-26 14:30 | (SR 5, Helmholtzweg 4) | |
| Thermodynamics of higher spin black holes Tim Nitzsche Masterverteidigung | ||
| Thu, 2016-04-21 16:00 | (Hörsaal 9, Carl-Zeiß-Str. 3) | |
| Magnetic Vortices, vortex lattices and automorphic functions Prof. Dr. Israel Michael Sigal, Univ. Toronto Abstract: I will review recent results concerning the Ginzburg - Landau equations. These equations were first developed to understand macroscopic behaviour of superconductors; later, together with their non-Abelian generalizations - the Yang-Mills-Higgs equations, they became a key part of the standard model in elementary particle physics. They also have found important applications in geometry and topology. The Ginzburg - Landau equations have remarkable solutions, localized topological solitons, called the magnetic vortices in the superconductivity and the Nielsen-Olesen or Nambu strings in the particle physics, as well as extended ones, magnetic vortex lattices. I will review the existence and stability theory of the vortex lattice solutions and how they relate to the modified theta functions appearing in number theory and algebraic geometry. Certain automorphic functions play a key role in the theory described in the talk. | ||
| Thu, 2016-04-21 14:15 | (SR 5, Helmholtzweg 4) | |
| Critical scaling in the Large-N O(N) model and its possible connection to quantum gravity Dr. Péter Mati (Budapest/Szeged) The critical scaling of the large-N O(N) model in higher dimensions using the exact renormalization group equations will be discussed. Particular attention is paid to the case of d=5 where the scaling exponent of the correlation length has the value 1/3, which coincides with the scaling exponent of quantum gravity in one fewer dimensions. Convincing results show that this relation could be generalized to arbitrary number of dimensions above five. Some aspects of AdS/CFT correspondence will be also discussed. | ||
| Wed, 2016-04-20 10:15 | (HI Jena, Fröbelstieg 3) | |
| QED in the infrared Dr. Péter Mati (Budapest/Szeged) Joint Seminar with Helmholtz Institute Jena Infrared (IR) singularities in massless gauge theories are known since the foundation of quantum field theories. The root of this problem can be tracked back to the very definition of these long-range interacting theories such as QED. The IR catastrophe and its resolution by cancelling the divergences will be discussed. The Bloch-Nordsieck model provides the deep IR description of QED, and in its framework all the radiative corrections to the electron propagator can be fully summed, giving the infra-particle interpretation to the electron. This solution can be obtained by using the functional technique based on the Schwinger-Dyson equation with the aid of the Ward-Takahashi identities. At finite temperatures we use the Keldysh description, that will give a matrix structure to the equation. Again an analytic solution can be obtained for the exact spectral function. The finite temperature solution provides a natural explanation of IR finiteness. | ||
| Tue, 2016-04-19 16:15 | (SR 5, Helmholtzweg 4) | |
| Thermodynamics in GR Prof. Dr. Gernot Neugebauer, TPI Jena | ||
| Mon, 2016-04-11 17:15 | (Hörsaal 1 Abbeanum, Fröbelstieg 1 (PAF Kolloquium)) | |
| Habilitationsvorstellung: Verdrilltes Licht: Physik und Anwendungen Dr. Marco Ornigotti, Institut für Angewandte Physik, FSU Jena | ||
| Thu, 2016-04-07 14:30 | (SR 5, Helmholtzweg 4) | |
| Verteidigung Masterarbeit Birger Böning | ||
| Mon, 2016-04-04 17:15 | (HS 1, Abbeanum) | |
| First Observation of Gravitational Waves from a Binary Black Hole Merger Prof. Dr. Bernd Brügmann, FSU Jena | ||
| Fri, 2016-03-11 16:15 | ||
| Collapse of the Brill waves in a moving-puncture-like gauge (WIP) Anton Khirnov Abstract: One of the open problems in numerical relativity is that of the critical collapse of gravitational waves into a black hole. Quite interestingly, it has been discovered that the supercritical Brill waves, a commonly used family of initial data, cannot be successfully evolved with the moving puncture gauge, popular for black hole simulations. In this talk, we present our work in progress on using a modification of the moving puncture gauge to evolve such data. | ||
| Fri, 2016-03-04 16:15 | (HS 2, Abbeanum) | |
| Verteidigung der Masterarbeit Anika Dathe | ||
Talks from 2015-10-01 up to 2016-02-29
| Thu, 2016-02-11 16:15 | (SR 5, Helmholtzweg 4) | |
| The fate of Halpern-Huang directions Dr. Alfio Bonanno (INAF, Catania) | ||
| Wed, 2016-02-10 14:15 | ||
| Cosmological Implications of Quantum Quadratic Gravity Dr. Alfio Bonanno (INFN Catania) | ||
| Mon, 2016-02-08 17:15 | (Hörsaal 1 Abbeanum, Fröbelstieg 1 (PAF Kolloquium)) | |
| Habilitationsvorstellung: Optische Signaturen des Quantenvakuums in starken elektromagnetischen Feldern Dr. Felix Karbstein, FSU Jena | ||
| Thu, 2016-02-04 14:15 | ||
| Nonperturbative renormalization group flow for scalar fields in de Sitter space Dr. Maxime Guilleux, Univesite Paris Diderot | ||
| Wed, 2016-02-03 16:15 | ||
| Reserved | ||
| Thu, 2016-01-28 14:15 | ||
| Phase diagram of an asymptotically free model through lattice dualization Dr. Falk Bruckmann, Universität Regensburg | ||
| Wed, 2016-01-27 16:15 | (HS 2, Abbeanum) | |
| Numerics and Astrophysics of Neutron Stars Prof. Stephan Rosswog, Universität Stockholm | ||
| Tue, 2016-01-26 16:15 | (SR 5, Helmholtzweg 4) | |
| Higgs-Inflation Dr. Javier Rubio, Heidelberg | ||
| Mon, 2016-01-25 17:15 | (Hörsaal 1 Abbeanum, Fröbelstieg 1 (PAF Kolloquium)) | |
| Wie könnte man die Gravitation beeinflussen? Prof. Dr. Martin Tajmar, TU Dresden | ||
| Thu, 2016-01-21 14:00 | ||
| Higgs inflation and the cosmological frame debate Dr. Christian Steinwachs, Universität Freiburg | ||
| Wed, 2016-01-20 16:15 | (HS 2, Abbeanum) | |
| Binary Black holes: Numerical simulations and their applications Prof. Harald Pfeiffer, Canadian Institute of Theoretical Astrophyiscs, University of Toronto | ||
| Thu, 2016-01-14 14:15 | ||
| Worldsheet string theory in AdS/CFT: perturbation theory and beyond Dr. Valentina Forini, HU Berlin Abstract: It is discussed how the integrable structure underlying the AdS/CFT system and the cross-fertilization of established field-theretical tools to strings can be used to enhance our knowledge on the string sigma model and thus the predictivity of the duality. | ||
| Tue, 2016-01-12 16:15 | ||
| Monte Carlo Methods for Approximation Problems Robert Kunsch | ||
| Mon, 2016-01-11 18:00 | (Aula der FSU) | |
| Antrittsvorlesung: Predicting new materials and their properties with supercomputing Prof. Dr. Silvana Botti, FSU Jena | ||
| Wed, 2016-01-06 16:15 | (HS 2, Abbeanum) | |
| Conformal properties of the Schwarzschild-de Sitter spacetime Dr. Juan Valiente-Kroon, School of Mathematical Sciences at Queen Mary, University of London Abstract: In this talk I will show how the asymptotic initial value problem for the conformal Einstein field equations, whereby one prescribes initial data on a spacelike hypersurface representing the conformal boundary, can be used to study various conformal aspects of the Schwarzschild-de Sitter spacetime. The analysis presented covers the subextremal, extremal and hyperextremal cases. The implications of this analysis for the study of nonlinear perturbations of members of the Schwarzschild-de Sitter family of spacetimes are discussed. | ||
| Tue, 2016-01-05 16:15 | (SR 5, Helmholtzweg 4) | |
| Introduction to Information-Based Complexity (IBC) Robert Kunsch | ||
| Fri, 2015-12-18 16:15 | ||
| Lösung axialsymmetrischer Wellengleichungen in der Kerr-Metrik durch eine Laplacetransformations-Methode Verteidigung der Masterarbeit Jörg Dommaschk, FSU Jena | ||
| Thu, 2015-12-17 14:15 | ||
| Maximally supersymmetric Yang--Mills-Theory on the lattice Dr. David Schaich Syracuse University | ||
| Wed, 2015-12-16 16:15 | (HS 2, Abbeanum) | |
| Cancelled. Dr. Omar Zanusso (TPI, FSU Jena) | ||
| Thu, 2015-12-10 14:00 | ||
| A holographic phase diagram of QCD and the critical point Roman Yaresko (Helmholtz-Zentrum Dresden-Rossendorf) | ||
| Tue, 2015-12-08 16:15 | ||
| From spectral functions to viscosity in the Quark-Gluon Plasma Dr. Nicolai Christiansen, Universität Heidelberg | ||
| Mon, 2015-12-07 17:15 | (Hörsaal 1 Abbeanum, Fröbelstieg 1 (PAF Kolloquium)) | |
| Cosmic Matter in the Laboratory Prof. Dr. Horst Stöcker, Universität Frankfurt | ||
| Fri, 2015-12-04 16:15 | (HS 2, Abbeanum) | |
| Nichtlineare Wechselwirkungen ebener Gravitationswellen Verteidigung der Masterarbeit von Marco Vockert | ||
| Thu, 2015-12-03 14:15 | (SR 5, Helmholtzweg 4) | |
| The Overlap Dirac operator and its Application to the Quark Sector of QCD in Coulomb Gauge Dr. Markus Pak (Uni Graz) | ||
| Fri, 2015-11-27 16:15 | ||
| A New ADER-DG Scheme based on a Local Continuous Runge-Kutta Method Verteidigung der Masterarbeit Matthias Pilz, FSU Jena | ||
| Tue, 2015-11-24 16:15 | (SR 5, Helmholtzweg 4) | |
| Towards quasicrystals in non-commutative spaces Felix Pogorzelski Abstract: In 2011, Dan Shechtman was awarded the Nobel prize in chemistry for his discovery of physical quasicrystals. Via diffraction experiments, he observed in 1982 that for some materials, there are interference patterns whose symmetries are not compatible with crystallographic structures in three-dimensional space. This triggered the mathematical examination of those structures as Dirac combs over uniformly discrete point sets in Euclidean space. In the past decades, mathematical diffraction theory evolved into a beautiful and rich research topic combining various disciplines such as functional analysis, fourier analysis and dynamical systems. One method to obtain a large class of interesting quasicrystals is via so-called cut-and-project schemes, introduced by Meyer in the 70s. This talk presents the basics of diffraction for cut-and-project schemes over locally compact abelian groups and describes how the theory can be extended to the non-commutative case. This is joint work with Michael Björklund (Chalmers Göteborg) and Tobias Hartnick (Technion Haifa). | ||
| Mon, 2015-11-23 17:15 | (Hörsaal 1 Abbeanum, Fröbelstieg 1 (PAF Kolloquium)) | |
| Carrier lifetime and diffusion constant: How to determine solar Cell material Proberties by time-resolved photoluminescence Prof. Dr. Roland Scheer, MLU Halle-Wittenberg | ||
| Thu, 2015-11-19 14:15 | ||
| Entanglement entropy in a holographic model of the Kondo effect Mario Flory MPI Munich Starting from a holographic model a magnetic impurity interacting with a strongly coupled system, I focus on the challenges of computing gravitational backreaction in this model, which demands a study of the Israel junction conditions. I present general results on these junction conditions which may be relevant more generally in the AdS/boundary CFT correspondence. Furthermore, similar junction conditions for a bulk Chern-Simons field appearing in the holographic Kondo model are discussed. I then focus on the computation and interpretation of entanglement entropy in the holographic Kondo model. The holographic g-theorem will be discussed as well as a geometric construction that allows to reproduce results obtained by conformal perturbation theory on the boundary. | ||
| Wed, 2015-11-18 16:15 | (HS 2, Abbeanum) | |
| Theoretical spectroscopy: how to calculate electronic excitations of materials from first-principles Prof. Silvana Botti, FSU Jena | ||
| Tue, 2015-11-17 16:15 | (SR 5, Helmholtzweg 4) | |
| Conformal Field Theory Prof. Martin Ammon | ||
| Fri, 2015-11-13 10:15 | (SR 2, HHW 5 (gelbes Haus)) | |
| Atomic Quantum Simulation of Abelian and non-Abelian Gauge Theories (II) Prof. Wiese | ||
| Thu, 2015-11-12 16:15 | (SR 5, HHW 4) | |
| Atomic Quantum Simulation of Abelian and non-Abelian Gauge Theories (I) Prof. Wiese | ||
| Tue, 2015-11-10 16:15 | (SR 5, Helmholtzweg 4) | |
| Conformal Field Theory Prof. Martin Ammon | ||
| Mon, 2015-11-09 17:15 | (Hörsaal 1 Abbeanum, Fröbelstieg 1 (PAF Kolloquium)) | |
| Von seinen eigentlichen künstlerischen Leistungen wissen wir wenig. - Der Architekt Ernst Neufert und das Abbeanum in Jena Dip.-Ing. Udo Gleim, TU Darmstadt | ||
| Thu, 2015-11-05 17:00 | ||
| Ehrenpromotion Prof. Dr. Anne L'Huillier, Universität Lund (Schweden) HS 1, Max-Wien-Platz | ||
| Tue, 2015-11-03 16:15 | (SR 5, Helmholtzweg 4) | |
| Conformal Field Theory Prof. Martin Ammon | ||
| Thu, 2015-10-29 14:15 | ||
| Massless modes and Spontaneous Symmetry Breaking in QFT and Holography Dr. Amadeo Jimenez Alba FSU Jena | ||
| Wed, 2015-10-28 16:15 | (HS 2, Abbeanum) | |
| Constructing interacting QFTs via OPEs Dr. Markus Fröb, Universität Leipzig Abstract: I will review a new approach to constructing interacting (Euclidean) QFTs in 4 dimensions via the operator product expansion (OPE), and a number of important results that have been proven in the last years using the Polchinski-Kopper flow equation framework, such as existence, convergence and factorisation properties of the OPE in a perturbative sense for non-gauge theories. Lastly, I present on-going work on the generalisation to gauge theories. | ||
| Mon, 2015-10-26 17:15 | (Hörsaal 1 Abbeanum, Fröbelstieg 1 (PAF Kolloquium)) | |
| 100 Jahre Forschung zur allgemeinen Relativitätstheorie (Physikalisches Kolloquium anläßlich des 75. Geburtstages von Prof. Dr. Gernot Neugebauer) Prof. Dr. Hubert Goenner, Universität Göttingen Zusammenfassung: Nach einer kurzen Einführung in die Allgemeine Relativitätstheorie gibt der Vortrag eine historisch-chronologisch angeordnete Übersicht über die Forschung seit Einsteins Publikation von 1915 und eine Auswahl der beteiligten Personen. Die aus der Theorie folgenden beobachtbaren Effekte, durch die die Theorie eindrucksvoll bestätigt wurde, werden ausführlich besprochen ebenso wie zukünftige geplante Messungen. Die Frage, ob es es "eine goldene Periode" der Gravitationsforschung gegeben hat, wird zum Schluss kommentiert. | ||
| Thu, 2015-10-22 14:15 | (SR 5, Helmholtzweg 4) | |
| Nucleon structure from Lattice QCD at nearly physical quark masses Dr. Andre Sternbeck | ||
| Tue, 2015-10-20 16:15 | (SR 5, Helmholtzweg 4) | |
| Introduction to Lattice QCD Dr. Andre Sternbeck | ||
Talks from 2015-03-01 up to 2015-09-30
| Tue, 2015-09-01 16:15 | (SR 5, Helmholtzweg 4) | |
| Multicritical Point and Competing Orders of Graphene's Dirac Electrons Laura Classen, Heidelberg | ||
| Tue, 2015-07-21 16:15 | (SR 5, Helmholtzweg 4) | |
| Invariant classification and limits of superintegrable systems Dr. Jonathan Kress, University of New South Wales (Sydney) Abstract: A classical Hamiltonian system possessing more globally defined conserved quantities than degrees of freedom is said to be superintegrable. Such systems possessing the maximum number of conserved quantities quadratic in the momenta have been much studied because of their connection with separation of variables and special functions. In two dimensions it has been shown that singular limits between `non-degenerate' superintegrable systems mirror limits between othogonal polynomials in the Askey scheme. As a first step in extending this to higher dimensions, all second order superintegrable systems with a `non-degenerate' potential have recently been classified and shown to arise by singular limits from a generic system on the 3-sphere. This classification and the relationships between the systems, which is joint work with Joshua Capel and Sarah Post, will be discussed. | ||
| Thu, 2015-07-16 14:15 | (SR 5, Helmholtzweg 4) | |
| Gauge Theory of the (infinite-dimensional) Translation Group and Gravitation Dr. Christian Wiesendanger, Zurich Short Abstract: The seminar will address two interrelated questions: - What if inertial and gravitational masses would differ off the mass shell? Could this be the basis of a theory of gravitation? - Can gauge theories of infinite-dimensional gauge groups (example is the 4-dim Translation Group) be mathematically consistently defined so that the classical gauge field Hamiltonian is positive-definite and the quantum theory renormalizable? | ||
| Fri, 2015-07-10 16:15 | (HS 2, Abbeanum) | |
| Finite differencing schemes for GLM-RMHD (Master Thesis Defense) by Tom Dörffel A class of finite differencing high-resolution shock-capturing methods for special relativistic magnetohydrodynamics is presented. The divergence condition is controlled by the divergence cleaning approach of Dedner (2002). By performing a series of standard tests the schemes are proven to be high-order accurate for smooth solution and stable in the case of strong shocks. | ||
| Tue, 2015-07-07 16:15 | (SR 5, Helmholtzweg 4) | |
| On the phase structure of imbalanced fermionic systems Dr. Tina Herbst, ITP Heidelberg | ||
| Tue, 2015-06-30 16:15 | ||
| QCD effective potential with strong magnetic fields Dr. Sho Osaki (KEK, Japan) | ||
| Mon, 2015-06-29 17:15 | (Hörsaal 1 Abbeanum, Fröbelstieg 1 (PAF Kolloquium)) | |
| Die Neudefinition des Kilogramm: Aktueller Stand und mögliche Auswirkungen auf die Darstellung und Weitergabe der Einheit Dr. Michael Borys, Physikalisch-Technische Bundesanstalt | ||
| Tue, 2015-06-23 16:15 | (SR 5, Helmholtzweg 4) | |
| Exploring some elliptic operators in Gravitation and Physical Oceanography Dr. Jose Luis Jaramillo, Universität Brest Abstract: We discuss two physical problems in which the study of the spectral properties of certain elliptic operators, related to the Laplace-Beltrami operator on compact Riemannian manifolds, appear naturally. The first problem dwells in a gravitational context, namely the stability of black hole apparent horizons, and addresses the properties of a non-selfadjoint elliptic operator defined on closed codimension-2 surfaces. The second problem deals with the slow motions in the ocean and brings about the discussion of the Laplace-Beltrami operator associated with an effective metric in the oceanic basic, namely a compact manifold with boundaries. The two problems are technically and conceptually related, in particular through the spectral approach we adopt for their study. The main goal in this talk is to present a brainstorm exercise aiming at identifying the most suited mathematical strategy for these problems. | ||
| Thu, 2015-06-18 14:15 | (SR 5, Helmholtzweg 4) | |
| How much nonperturbative is the nonperturbative regime of QCD? Dr. Matthieu Tissier, LPTMC (Laboratoire de Physique Théorique de la Matière Condensée), Université Pierre et Marie Curie, Paris. ABSTRACT Studying the high energy regime of QCD is a problem that can be tackled by perturbation theory. This is a consequence of asymptotic freedom, which states that the coupling constant of QCD decreases when increasing the energy. The low energy regime (often called the "nonperturbative regime") is much more difficult to access, mainly because the standard perturbation theory is not applicable anymore. Nonetheless, I will discuss the possibility of studying the low-energy regime of QCD perturbatively. The main idea is to perform perturbation theory not around the usual Faddeev-Popov action, but around a simple extension of the latter, known as the Curci-Ferrari model. I will discuss the properties of this model and present several 1-loop calculations 1) for correlation functions 2) for the phase diagram of QCD. Comparison with lattice data show that all these quantities can be reproduced with a precision of the order of 15-20%. | ||
| Mon, 2015-06-15 17:15 | (Hörsaal 1 Abbeanum, Fröbelstieg 1 (PAF Kolloquium)) | |
| Power and Magnet Applications of High Temperature Superconductors Prof. Dr. Bernhard Holzapfel, Karlsruher Institut für Technologie | ||
| Thu, 2015-06-11 14:15 | (SR 5, Helmholtzweg 4) | |
| On the Search for Inhomogeneous Phases in Fermionic Models Dr. Felix Karbstein Helmholtz-Institut Jena We revisit the Gross-Neveu model with N fermion flavors in 1+1 dimensions and compute its phase diagram at finite temperature and chemical potential in the large-N limit. To this end, we double the number of fermion degrees of freedom in a specific way which allows us to detect inhomogeneous phases in an efficient manner. We show analytically that this "fermion doubling trick" predicts correctly the position of the boundary between the chirally symmetric phase and the phase with broken chiral symmetry. Most importantly, we find that the emergence of an inhomogeneous ground state is predicted correctly. We critically analyze our approach based on this trick and discuss its applicability to other theories, such as fermionic models in higher dimensions, where it may be used to guide the search for inhomogeneous phases. | ||
| Thu, 2015-06-04 14:15 | (SR 5, Helmholtzweg 4) | |
| Glueballs in the Dyson-Schwinger approach Dr. Helios Sanchis Alepuz, Justus-Liebig Universität, Gießen | ||
| Tue, 2015-06-02 16:15 | (SR 5, Helmholtzweg 4) | |
| The Topology of Chiral Vector Bundles (topological insulators of type AIII) Dr. Giuseppe de Nittis, Friedrich-Alexander-Universität Erlangen-Nürnberg The classification of topological states of matter is an important hot topic in mathematical physics. In this talk I will describe a new approach to the classification of topological quantum systems in class AIII which is based on the study of a new category of vector bundles. The objects of this category, the chiral vector bundles, are pairs constituted by a complex vector bundle along with one of its automorphisms. We provide a classification for the homotopy equivalence classes of these objects which is based on the construction of a suitable classifying space. The computation of the cohomology of the latter allows us to introduce a proper set of characteristic cohomology classes: Some of those just reproduce the ordinary Chern classes but there are also new odd-dimensional classes which take care of the extra topological information introduced by the chiral structure. Chiral vector bundles provide the proper geometric model for topological quantum systems in class AIII, namely for systems endowed with a (pseudo-)symmetry of chiral type. The classification of the chiral vector bundles over sphere and tori (explicitly computable up to dimension 4) recover the commonly accepted classification for topological insulators of class AIII which is usually based on the K-group K1. However, this new classification turns out to be even richer since it takes care also for the possibility of non trivial Chern classes. | ||
| Mon, 2015-06-01 17:15 | (Hörsaal 1 Abbeanum, Fröbelstieg 1 (PAF Kolloquium)) | |
| Keine Panik! Die Physik der Fußgängerdynamik und Evakuierungsprozesse Prof. Dr. Andreas Schadschneider, Universität Köln | ||
| Tue, 2015-05-26 16:15 | (SR 5, Helmholtzweg 4) | |
| Entanglement entropy as a probe for quantum gravity Dr. Michael Ferlaino University of Swansea, UK | ||
| Thu, 2015-05-21 14:15 | (SR 5, Helmholtzweg 4) | |
| Induced QCD with Nc-1 auxiliary bosonic fields Dr. Bastian Brandt, Universität Regensburg | ||
| Wed, 2015-05-20 16:15 | (SR 5, Helmholtzweg 4) | |
| Binary Neutron Stars with Spin Prof. Wolfgang Tichy, Florida Atlantic University Note: Changed time from usual slot on Tuesday to Wednesday | ||
| Tue, 2015-05-19 16:15 | (SR 5, Helmholtzweg 4) | |
| Modeling Liquids and Bulk Metallic Glasses Prof. Jean Bellissard, Georgia Institute of Technology Atlanta, USA | ||
| Mon, 2015-05-18 16:15 | (HS 2, Abbeanum) | |
| New efficient algorithm for the isometric embedding of 2-surface metrics in 3 dimensional Euclidean space Wolfgang Tichy, Florida Atlantic University We present a new numerical method for the isometric embedding of 2-geometries specified by their 2-metrics in three dimensional Euclidean space. Our approach is to directly solve the fundamental embedding equation supplemented by six conditions that fix translations and rotations of the embedded surface. This set of equations is discretized by means of a pseudospectral collocation point method. The resulting nonlinear system of equations are then solved by a Newton-Raphson scheme. We explain our numerical algorithm in detail. By studying several examples we show that our method converges provided we start the Newton-Raphson scheme from a suitable initial guess. Our novel method is very efficient for smooth 2-metrics. | ||
| Wed, 2015-05-13 16:00 | (HS 2, Abbeanum) | |
| Spinning particle in a Kerr background Dr. Georgios Lukes-Gerakopoulos, Institute of Theoretical Physics, Charles University in Prague, Czech Republic | ||
| Tue, 2015-04-28 16:15 | ||
| Modeling the Electronic Properties of Graphene Prof. Lorenz von Smekal - Technische Universität Darmstadt | ||
| Fri, 2015-03-06 16:15 | (HS 2, Abbeanum) | |
| Das Spätzeitverhalten relativistischer Wellen (Masterverteidigung) Martin Becker, FSU Jena | ||
Talks from 2014-10-01 up to 2015-02-28
| Wed, 2015-01-28 17:15 | (Seminarraum HI Jena, Fröbelstieg 3) | |
| Lightlike inhomogenities in worldline pair creation Dr. Anton Ilderton, Chalmers University Göteborg The locally constant field approximation (LFCA) is commonly used to calculate the nonperturbative pair production probability in electromagnetic fields. In certain classes of fields, for example longitudinal electric fields depending on lightfront time, the LCFA is known to be exact. Using the worldline description of the effective action, we show that the reason for this is closely tied to the zero-mode problem of lightfront quantisation, and the so-called “triviality” of the lightfront vacuum. | ||
| Tue, 2015-01-27 16:15 | (SR 5, Helmholtzweg 4) | |
| The Callias Index Theorem Revisited Dr. Marcus Waurick, Technische Universität Dresden | ||
| Wed, 2015-01-21 16:15 | (HS 2, Abbeanum) | |
| New Frontiers in integrated photonics: supersymmetry and unphysical phenomena Prof. Dr. Alexander Szameit, IAP Universität Jena | ||
| Tue, 2015-01-20 16:15 | (SR 5, Helmholtzweg 4) | |
| Asymptotic Safety in Gravity Dr. Astrid Eichhorn, Imperial College London | ||
| Wed, 2015-01-14 16:00 | (SR 309, Carl-Zeiß-Str. 3) | |
| From Schwarzschild to General Relativity: modeling physical phenomena with the help of geometry Dr. Carla Cederbaum, Universität Tübingen | ||
| Tue, 2015-01-13 16:15 | ||
| Spectral theory for continuum one-dimensional quasicrystal models Dr. Christian Seifert, Technische Universität Hamburg-Harburg We consider an ergodic family $(H_\omega)_{\omega\in\Omega}$ of continuum one-dimensional Schr\"odinger operators, where we allow for measures as potentials. We show that the random operator $H$ has Cantor type spectra of Lebesuge measure zero under suitable finite local complexity conditions on the potentials. Such operator families appear in the study of quasicrystalline models. | ||
| Thu, 2015-01-08 14:15 | (SR 5, HH 4, instead of the quantum theory seminar) | |
| Perturbative Quantum Gravity III Prof. Ilya Shapiro Universidade Federal de Juiz de Fora | ||
| Wed, 2015-01-07 16:15 | (HS 2, Abbe., instead of the seminar of the institute) | |
| Perturbative Quantum Gravity II Prof. Ilya Shapiro Universidade Federal de Juiz de Fora | ||
| Tue, 2015-01-06 16:15 | (SR 5, Helmholtzweg 4) | |
| Perturbative Quantum Gravity I Prof. Ilya Shapiro Universidade Federal de Juiz de Fora | ||
| Thu, 2014-12-18 14:15 | ||
| Critical behavior in spherical and hyperbolic space Dr. Dario Benedetti (AEI Potsdam) | ||
| Wed, 2014-12-17 16:15 | ||
| A Simple Proof of the Kochen-Specker Theorem on the Problem of Hidden Variables Prof. Norbert Straumann, Universität Zürich | ||
| Tue, 2014-12-16 16:15 | (SR 5, Helmholtzweg 4) | |
| Rendering integrands positive - subset method for lattice QCD at high density Dr. Falk Bruckmann Universität Regensburg | ||
| Wed, 2014-12-10 16:00 | (HS 2, Abbeanum) | |
| apl.: AG Fachdidaktik der Physik und Astronomie Prof. Lotze | ||
| Tue, 2014-12-09 16:15 | (SR 5, Helmholtzweg 4) | |
| (Non)-Fermi Liquids Dr. Tilman Enss Ruprecht-Karls-Universität Heidelberg | ||
| Fri, 2014-12-05 11:30 | (Rosensäle) | |
| Binary neutron stars: what we understand and what we don't From Luciano Rezzolla for the GWA14 conference I will review the recent progress made in modelling binaries of compact stars and the role played by magnetic fields and the equation of state in their evolution. Special attention will be paid to highlighting how the progress of ab-initio fully relativitistic calculations can be used to explain several aspects of the phenomenology of short gamma-ray burst, but also how new observations on the X-ray afterglows represent new riddles for the theoretical modeling. | ||
| Fri, 2014-12-05 10:00 | (Rosensäle) | |
| Constraining the nature of gravitational waves with binary pulsar experiments From Paulo Freire for the GWA14 conference In this talk I present some recent pulsar timing experiments for double neutron stars that test general relativity's quadrupolar gravitational wave emission formula with unprecedented precision. I then present the results of timing of millisecond pulsar - white dwarf systems that severely constrain the emission of dipolar gravitational waves (DGW) for a wide range of neutron star masses. Apart from constraining (and in some cases excluding) alternative theories of gravity that predict DGW emission, these results reinforce our confidence in the templates being used to search for the GW signal of NS-NS and NS-BH inspiral events in the advanced LIGO and Virgo detectors. | ||
| Fri, 2014-12-05 09:00 | (Rosensäle) | |
| Highest order post-Newtonian dynamics of non-spinning and spinning compact binaries in general relativity From Gerhard Schäfer for the GWA14 conference The talk delivers insight into the calculations of highest order post-Newtonian (PN) Hamiltonians for binary black holes. The conservative dynamics is presented up to 4 PN order for binaries with both non-spinning and spinning components, where the spins are counted of 0.5 PN order. The related dissipative radiation reaction dynamics is known up to 4.5 PN order. As application, the Innermost Stable Circular Orbit for spinless binaries is given through 4 PN order and the test-body limit is compared with the exactly known ISCO of a test-body orbiting a Schwarzschild black hole. | ||
| Thu, 2014-12-04 10:00 | (Rosensäle) | |
| Binary black holes: Waveform modeling and two-body dynamics From Harald Pfeiffer for the GWA14 conference This talk will introduce the Spectral Einstein Code, a general relativistic code to solve the inspiral and merger of two black holes. I will give an update on numerical results with SpEC, and will discuss several applications of the simulations, among them the construction of waveform models within the effective-one-body formalism, the study of gravitational self-force effects through comparable-mass binary black hole simulations, and a comparison of the post-Newtonian precession dynamics with numerical simulations. | ||
| Thu, 2014-12-04 09:00 | (Rosensäle) | |
| Gravitational waves from coalescing neutron star binaries From Masaru Shibata for the GWA14 conference | ||
| Wed, 2014-12-03 10:00 | (Rosensäle) | |
| Post-merger Oscillations in Binary Neutron Star Mergers from Nikolaos Stergioulas for the GWA14 conference Because of the recent discovery of two-solar-mass neutron stars, the equation of state of high density matter is likely to be sufficiently stiff to allow for a long-lived remnant, when two neutron stars merge. The merger excites a number of oscillation modes, having large (nonlinear) amplitude, that are interesting as gravitational waves sources for second- and third-generation interferometric detectors. Apart from a dominant linear oscillation mode, additional nonlinear contributions appear. I discuss the main properties of these oscillations as well as the prospects of constraining the mass and radius (and thus the equation of state) with future detections. | ||
| Wed, 2014-12-03 09:00 | (Rosensäle) | |
| Searching for gravitational waves from the early Universe from Fabian Schmidt for the GWA14 conference | ||
| Tue, 2014-12-02 11:30 | (Rosensäle) | |
| Gravitational wave detection using squeezed light from Roman Schnabel for the GWA14 Conference Current gravitational wave (GW) detectors are Michelson-type kilometre-scale laser interferometers measuring the distance changes between in vacuum suspended mirrors. The sensitivity of these detectors is limited by quantum noise of the laser light. Since 2010, GEO600 has been using so-called nonclassical light that has a ‘squeezed’ quantum noise, and it has been demonstrated that squeezed light is able to increase the GW detector sensitivity at shot-noise limited frequencies. In future, squeezed light might be used to further improve the sensitivity of GW detectors, then also at radiation pressure noise dominated frequencies and at frequencies where photon-phonon scattering is limiting the detectors performance. | ||
| Tue, 2014-12-02 10:00 | ||
| Gravitational waves from black-hole binaries from Mark Hannam for the GWA14 Conference | ||
| Tue, 2014-12-02 09:00 | ||
| Progress in Three-dimensional Supernova Modeling from Hans-Thomas Janka for the GWA14 conference 3D supernova simulations have become possible only very recently and have already led to the discovery of novel and unexpected phenomena, although they still need to confirm the basic theoretical concepts of the explosion mechanism. The talk will review the status of 3D modeling and interesting new perspectives to probe the supernova core dynamics by neutrinos and gravitational waves measured in the case of a next galactic event. | ||
| Mon, 2014-12-01 19:00 | (Max-Wien-Platz 1, Lecture Hall 1) | |
| Gravitationswellenastronomie: Bald Neues von der dunklen Seite des Universums! Public Talk of the GWA14 Conference from Karsten Danzmann Können wir das Universum hören? Auf den ersten Blick ist das eine unsinnige Frage, denn natürlich gibt es im Weltall keine Luft, in der sich der Schall ausbreiten könnte. Wenn aber unsere Ohren nur empfindlich genug wären, dann könnten sie auf eine besondere Art von Wellen reagieren: auf Gravitationswellen! Vor mehr als 90 Jahren sagte Albert Einstein die Existenz von Gravitationswellen als Konsequenz seiner allgemeinen Relativitätstheorie voraus. Gravitationswellen sind winzige Verbiegungen des Raumes und der Zeit, die von schnellbewegten, großen Massen erzeugt werden und sich mit Lichtgeschwindigkeit wellenförmig ausbreiten. Sie wurden noch nie direkt nachgewiesen. Mehrere laserinterferometrische Gravitationswellendetektoren mit Armlängen von Kilometern werden gegenwärtig auf der Erde betrieben, um Gravitationswellen zu erforschen, darunter auch GEO600 in der Nähe von Hannover. Bald folgen Detektoren im Weltraum mit Millionen km Armlänge, insbesondere die Satelliten-Mission LISA. Ausgangspunkt für diese geheimnisvollen Wellen könnten z. B. verschmelzende Doppelsterne, Neutronensterne, Supernovae, Schwarze Löcher und der Urknall sein. Ihre Beobachtung erfordert modernste Lasertechnologie und Messungen an der quantenmechanischen Nachweisgrenze. | ||
| Mon, 2014-12-01 15:00 | (Rosensäle) | |
| Beyond the second generation of gravitational wave detectors from Ronny Nawrodt for the GWA14 Conference Gravitational wave detectors are currently upgraded to the 2nd generation achieving extremely high sensitivities in a wide frequency band. A first direct detection of gravitational waves is expected once these instruments are getting online. Such a detection will mark the starting point for a gravitational wave based astronomy. Thus, detectors of the third generation are designed to be used as efficient astronomical observatories. For this purpose the sensitivity of the 2nd generation detectors has to be enhanced. As the sensitivity of current instruments approaches the thermal noise floor of their fused silica components a radical change of materials is necessary. Additionally, 3rd generation detectors will be operated at cryogenic temperatures to further reduce thermal noise and increase their sensitivity. This talk will give an overview of proposed technologies towards 3rd generation detectors leading to a 10 times higher sensitivity throughout the audio band. The focus will lie on the selection of materials for the optics as well as the suspension elements according to their properties. The characterisation of these materials and the choice of their operational temperature is discussed as well. | ||
| Mon, 2014-12-01 14:00 | ||
| From the beginning to the second generation of gravitational wave detectors from David Shoemaker for the GWA 2014 Conference A brief history of gravitational wave detection using laser interferometers will be given, followed by a status report on one example of the second generation of detectors, Advanced LIGO. | ||
| Tue, 2014-11-25 16:00 | (SR 5, Helmholtzweg 4) | |
| Dark energy and the uniqueness of general relativity Prof. Matthias Bartelmann Ruprecht-Karls-Universität Heidelberg | ||
| Thu, 2014-11-20 14:15 | ||
| Hamiltonian approach to QCD in Coulomb gauge: From the vacuum to finite temperatures Prof. Dr. Hugo Reinhardt, Universität Tübingen | ||
| Wed, 2014-11-19 16:15 | (HS 2, Abbeanum) | |
| Lightfront quantisation and strong field QED Greger Torgrimsson (Chalmers) | ||
| Fri, 2014-11-14 16:00 | (HS 2, Abbeanum) | |
| Ab Initio Simulationen zur Struktur und Dynamik warmer dichter Aluminiumplasmen Hannes Rüter, MSc, Universität Rostock | ||
| Thu, 2014-11-13 14:15 | ||
| Non-Equilibrium Dynamics of a Holographic Superfluid Andreas Samberg, Ruprecht-Karls-Universität Heidelberg | ||
| Thu, 2014-11-06 14:15 | ||
| Can effects of quantum gravity be observed in the CMB? Prof. Claus Kiefer, University Cologne | ||
| Tue, 2014-11-04 16:15 | (SR 5, Helmholtzweg 4) | |
| Supersymmetric Yang Mills Theories Dr. Georg Bergner, Universität Bern | ||
| Tue, 2014-10-28 16:15 | (SR 5, Helmholtzweg 4) | |
| Coupling constant metamorphosis and conformally covariant Laplacians Dr. Jonathan Kress (University of New South Wales, Sydney) | ||
Talks from 2014-03-01 up to 2014-09-30
| Fri, 2014-08-22 15:00 | ||
| Quantenmechanik in gekrümmter Raum-Zeit und die klassischen Mathisson-Papapetrou-Bewegungsgleichungen Prof. Alexander Gorbatsievich (Belarussian State University, Minsk) HS 3, Abbeanum | ||
| Thu, 2014-07-10 16:15 | (HS 2, Abbeanum) | |
| Testing the nature of astrophysical black hole candidates Prof. Cosimo Bambi (Fudan University) | ||
| Wed, 2014-07-09 14:15 | (HS 2, Abbeanum) | |
| Global Flows in Quantum Gravity Prof. Jan M. Pawlowski (Universität Heidelberg) | ||
| Tue, 2014-07-08 16:15 | (SR 5, Helmholtzweg 4) | |
| Introduction to the FRG Prof. Jan M. Pawlowski (Universität Heidelberg) | ||
| Mon, 2014-07-07 17:15 | (HS 1, Abbeanum) | |
| Black hole physics in the laboratory Dr. Silke Weinfurtner University of Nottingham | ||
| Mon, 2014-06-30 14:00 | ||
| SFB Video Seminar Talk - Wasilij Barsukow | ||
| Wed, 2014-06-25 17:00 | ||
| Super-adiabatic particle number: can we watch vacuum particle production in real time? Prof. Gerald Dunne (Connecticut U.) | ||
| Tue, 2014-06-24 16:15 | ||
| Violation of Lorentz invariance, related phenomena, and experiments Dr. Marco Schreck (Indiana University) | ||
| Mon, 2014-06-23 18:00 | (HS 1, Abbeanum) | |
| Optische Glasfasern - eine Plattform für die Photonik Antrittsvorlesung Prof. Dr. Markus Schmidt Leibniz-Institut für Photonische Technologien | ||
| Mon, 2014-06-23 14:00 | ||
| SFB Video Seminar Talk - Matteo Bugli | ||
| Thu, 2014-06-19 14:15 | ||
| Black hole analogues & robustness of Hawking radiation Prof. Ralf Schützhold (Duisburg-Essen U.) | ||
| Tue, 2014-06-17 16:15 | (SR 5, Helmholtzweg 4) | |
| Dilaton Quantum Gravity Tobias Henz, Universität Heidelberg | ||
| Mon, 2014-06-16 17:15 | (HS 1, Abbeanum) | |
| Optische Interferometer mit sub-Attometer Auflösung - Wege zur Gravitationswellenastronomie Habilitationsvorstellung Dr. Ronny Nawrodt Institut für Festkörperphysik | ||
| Mon, 2014-06-16 14:00 | ||
| SFB Video Seminar Talk - Oliver Just | ||
| Tue, 2014-06-10 16:15 | (SR 5, Helmholtzweg 4) | |
| Self-adjoint, globally defined Hamiltonian operators for systems with boundaries Prof. Andrea Posilicano (University of Insurbia) | ||
| Mon, 2014-06-02 17:15 | (HS 1, Abbeanum) | |
| Free-evolution formulations of General Relativity and their numerical approximation Habilitationsvorstellung Dr. David Hiltich Theoretisch-Physikalisches Institut, FSU Jena | ||
| Mon, 2014-05-26 17:15 | (HS 1, Abbeanum) | |
| Relativitätstheorie relativ anschaulich - Visualisierungen und Modellexperimente Prof. Dr. Ute Kraus Universität Hildesheim | ||
| Thu, 2014-05-22 14:15 | ||
| Resurgence in Quantum Field Theory Prof. Gerald Dunne (Connecticut U.) | ||
| Wed, 2014-05-21 16:15 | (HS 2, Abbeanum) | |
| Strongly coupled physics: when dynamics generates structure Prof. Jens Braun (TU Darmstadt) | ||
| Tue, 2014-05-20 14:15 | (SR 5, Helmholtzweg 4) | |
| Supersymmetric Yang-Mills on the Lattice - Recent Developments Anosh Joseph (DESY Zeuthen) | ||
| Mon, 2014-05-19 14:00 | ||
| Magnetars: from X-rays to gravitational waves (and back) Speaker: Simone D'allosso | ||
| Wed, 2014-05-14 16:15 | (HS 2, Abbeanum) | |
| Towards a multi-messenger picture of compact binary mergers Prof. Stephan Rosswog (Stockholm University) | ||
| Mon, 2014-05-12 17:15 | (HS 1, Abbeanum) | |
| Quantumcomputer - Rechenkunst mit Quantenphysik Prof. Dr. Rainer Blatt Universität Innsbruck | ||
| Mon, 2014-05-05 17:15 | (HS 1, Abbeanum) | |
| Was heißt und zu welchem Ende studiert man Bohmsche Mechanik? Prof. Dr. Detlef Dürr Ludwig-Maximilians-Universität München | ||
| Mon, 2014-05-05 14:00 | ||
| "Taming the post-Newtonian expansion: How to simplify complicated high-order post-Newtonian expressions Speaker: Nathan Johnson-McDaniel | ||
| Tue, 2014-04-29 16:15 | (SR 5, Helmholtzweg 4) | |
| Resurgence: connecting perturbative and non-perturbative physics Prof. Gerald Dunne (Connecticut U.) | ||
| Mon, 2014-04-28 17:15 | (HS 1, Abbeanum) | |
| Tumor therapy with scanned carbon ion beams Dr. Christian Gräf Helmholtzzentrum für Schwerionenforschung GmbH | ||
| Mon, 2014-04-28 14:00 | ||
| Magnetars: from X-rays to gravitational waves (and back) speaker: Simone Dall'Osso | ||
| Mon, 2014-04-14 14:00 | ||
| SFB Video Seminar Talk - Daniel Siegel | ||
| Thu, 2014-04-10 14:15 | (SR 5, Helmholtzweg 4) | |
| Resurgence: connecting perturbative and non-perturbative physics Prof. Gerald Dunne (Connecticut U.) | ||
| Tue, 2014-04-08 15:15 | (SR 5, Helmholtzweg 4) | |
| Resurgence: connecting perturbative and non-perturbative physics Prof. Gerald Dunne (Connecticut U.) | ||
| Thu, 2014-03-06 14:15 | ||
| Vector Boson Scattering after Higgs Discovery Marco Sekulla (Uni. Siegen) | ||
| Wed, 2014-03-05 11:15 | (HS 2, Abbeanum) | |
| All you can solve Prof. Dr. Michael Thies (Erlangen) | ||
Talks from 2013-10-01 up to 2014-02-28
| Tue, 2014-02-18 16:15 | ||
| Reduction of the NP formalism to 3-dimensional geometry Robert Milson Dalhousie University Halifax | ||
| Fri, 2014-02-07 16:15 | (HS 2, Abbeanum) | |
| Physical properties of perturbed Kerr black holes in ACMC slices Dr. Rodrigo Panosso Macedo FSU Jena | ||
| Mon, 2014-02-03 17:15 | ||
| Komplexe Verbindungshalbleiter: Von der atomaren Struktur zur Bandlücke Habilitationsvorstellung Dr. Claudia Schnohr Institut für Festkörperphysik | ||
| Wed, 2014-01-29 16:15 | (HS 2, Abbeanum) | |
| Modeling Type Ia supernova explosions Prof. Dr. Friedrich Röpke Universität Würzburg | ||
| Tue, 2014-01-28 16:15 | (SR 5, Helmholtzweg 4) | |
| Particle Physics @ Low Energies Prof. Joerg Jaeckel Heidelberg | ||
| Wed, 2014-01-22 16:15 | (HS 2, Abbeanum) | |
| Quantum field theory on DeSitter spacetime Prof. Stefan Hollands Universität Leipzig | ||
| Mon, 2014-01-20 18:00 | (Aula der FSU) | |
| Elektronendynamik in starken Feldern Antrittsvorlesung Prof. Dr. Stephan Fritzsche Helmholtz-Institut Jena | ||
| Mon, 2014-01-20 14:00 | (URZ 28) | |
| Can spin be ignored in neutron star mergers? Tim Dietrich TPI Jena | ||
| Thu, 2014-01-16 14:15 | (SR 5, Helmholtzweg 4) | |
| Simulating full QCD at nonzero density using the complex Langevin equation (Denes Sexty, University of Heidelberg) Abstract: The complex Langevin method is extended to full QCD at non-zero chemical potential. The use of gauge cooling stabilizes the simulations at small enough lattice spacings. At large fermion mass the results are compared to the HQCD approach, in which the spatial hoppings of fermionic variables are neglected, and good agreement is found. The method allows simulations also at high densities, all the way up to saturation. Preliminary results of a comparison to the reweighting approach are presented. | ||
| Wed, 2014-01-15 16:15 | (HS2, Abbeanum) | |
| Gravity actions from matter actions II: derivation of the spacetime dynamics Dr. Frederic Schuller Erlangen | ||
| Tue, 2014-01-14 16:15 | (SR 5, Helmholtzweg 4) | |
| Gravity action from matter actions I: derivation of the spacetime kinematics Dr. Frederic Schuller Erlangen | ||
| Mon, 2014-01-13 17:15 | (HS 1, Abbeanum) | |
| Integrierte optische Schaltkreise für klassisches und nicht-klassisches Licht Habilitationsvorstellung Jun.-Prof. Dr. Alexander Szameit Institut für Angewandte Physik | ||
| Tue, 2014-01-07 16:15 | ||
| Global Completeness of Quantum Gravity Benjamin Knorr (Heidelberg) | ||
| Mon, 2014-01-06 17:15 | (Hörsaal 1, Max-Wien-Platz) | |
| Entstehung und Entwicklung von Magnetfeldern in Galaxien und Galaxienhaufen Prof. Dr. Harald Lesch LMU München | ||
| Thu, 2013-12-19 14:15 | ||
| From quarks and gluons to baryon properties Gernot Eichmann (Uni. Giessen) | ||
| Mon, 2013-12-16 14:00 | (URZ 28) | |
| Equilibrium models of relativistic stars with a toroidal magnetic field Speaker: Joachim Frieben (AEI Potsdam) | ||
| Tue, 2013-12-10 16:15 | (SR 5, Helmholtzweg 4) | |
| ART und Thermodynamik Schwarze Löcher Prof. Emil Mottola Los Alamos National Laboratory | ||
| Mon, 2013-12-09 17:15 | (HS 1, Abbeanum) | |
| Kosmologische Magnetfelder Prof. Dr. Ruth Durrer University of Genf, Schweiz | ||
| Mon, 2013-12-09 14:00 | ||
| "All the things you would like to know about chaotic indicators in GR" Georgios Loukes-Gerakopoulos FSU Jena | ||
| Thu, 2013-12-05 14:15 | (SR 5, Helmholtzweg 4) | |
| Physical analogies of black hole horizons: from the Young-Laplace law to the quantum charged particle Jose-Luis Jaramillo Max-Planck-Institut für Gravitationsphysik (Albert-Einstein-Institut), Golm/Potsdam | ||
| Tue, 2013-12-03 16:15 | (SR 5, Helmholtzweg 4) | |
| Differentialgeoemtrie auf Mannigfaltigkeiten II Dr. Rainer Oloff FSU Jena | ||
| Mon, 2013-12-02 17:15 | (HS 1, Abbeanum) | |
| Modeninstabilitäten in Hochleistungsfaserlasern Habilitationsvorstellung Dr. Cesar Jauregui Institut für Angewandte Physik | ||
| Fri, 2013-11-29 16:15 | (HS 2, Abbeanum) | |
| Die Kerr-Metrik in ADM-Koordinaten in quadratischer Ordnung im Spin und hoher post-Newtonscher Ordnung Verteidigung der Masterarbeit Jan Sperrhake TPI Jena | ||
| Tue, 2013-11-26 16:15 | ||
| Differentialgeometrie auf Mannigfaltigkeiten I Dr. Rainer Oloff FSU Jena | ||
| Mon, 2013-11-25 17:15 | (HS 1, Abbeanum) | |
| Quantenlogisticspectroskopie - Von fundamentalen Tests zur Astronomie Prof. Dr. Piet Schmidt PTB Braunschweig | ||
| Mon, 2013-11-25 14:00 | ||
| Magnetic field decay in magnetars: evidence and inference" Simone Dall'Osso Universität Tübingen | ||
| Thu, 2013-11-21 14:15 | (SR 5, Helmholtzweg 4) | |
| Entanglement Entropy for Probe Branes, the leading Backreaction Han-Chih Chang UW Seattle | ||
| Wed, 2013-11-20 16:15 | (HS 2, Abbeanum) | |
| Anomalies IV (C-theorem basics) Prof. Martin Ammon FSU Jena | ||
| Tue, 2013-11-19 16:15 | (SR 5, Helmholtzweg 4) | |
| Anomalies III (conformal anomalies) Prof. Martin Ammon FSU Jena | ||
| Mon, 2013-11-18 17:15 | (HS 1, Abbeanum) | |
| Geschichte und historisches Umfeld der vormalig Herzoglichen Sternwarte in Jena Veranstaltung anlässlich des 200. Geburtstages der Sternwarte in Jena Prof. Dr.Olaf Breidbach Institut für Geschichte der Medizin, Naturwissenschaft und Technik "Ernst Haeckel-Haus" | ||
| Mon, 2013-11-18 14:00 | (URZ 28) | |
| "Rapidly rotating neutron stars in scalar-tensor theories of gravity" Daniela Doneva Universität Tübingen | ||
| Wed, 2013-11-13 16:15 | (HS 2, Abbeanum) | |
| Anomalies II (gauge anomalies) Dr. Axel Maas FSU Jena | ||
| Tue, 2013-11-12 16:15 | (SR 5, Helmholtzweg 4) | |
| Anomalies I (global anomalies) Dr. Axel Maas FSU Jena | ||
| Mon, 2013-11-11 17:15 | (HS 1, Abbeanum) | |
| Analytische Modellierung von Metamaterialien Habilitationsvorstellung Dr. Arkadi Chipouline Institut für Angewandte Physik | ||
| Wed, 2013-11-06 16:15 | (HS 2, Abbeanum) | |
| The Instability of de Sitter Space & the Schwinger Effect Emil Mottola Los Alamos National Laboratory | ||
| Mon, 2013-10-28 17:15 | (HS 1, Abbeanum) | |
| Behavior of materials under a dense and nanometric electron excitation Prof. Dr. Marcel Toulemonde CNRS Caen, France | ||
| Mon, 2013-10-21 17:15 | (Hörsaal 1, Max-Wien-Platz) | |
| On the unreasonable effectiveness of post-Newtonian theory in gravitational physics Ehrenkolloquium Prof. Dr. Cliff Will University of Florida, USA | ||
Talks from 2013-03-01 up to 2013-09-30
| Mon, 2013-09-09 11:15 | (HS 2, Abbeanum) | |
| Stability of magnetic condensation and mass generation for confinement in SU(2) Yang-Mills theory Prof. Kei-Ichi Kondo (Chiba University, Japan) | ||
| Thu, 2013-09-05 11:00 | (HS 2, Abbeanum) | |
| Kollidierende ebene Gravitationswellen Sebastian Möckel FSU Jena Verteidigung der Masterarbeit | ||
| Mon, 2013-08-26 11:00 | (HS 2, Abbeanum) | |
| Einsteinsche Gravitationsfelder gegenrotierender Staubscheiben Verteidigung der Masterarbeit Steven Krause FSU Jena | ||
| Tue, 2013-08-13 11:15 | (HS 5 Abbeanum) | |
| Functional renormalization of N scalars with O(N) invariance Dr. Mahmoud Safari (SISSA, Trieste) | ||
| Thu, 2013-08-08 14:15 | ||
| Excited states and hadron resonances from Lattice QCD Daniel Mohler (Fermilab, USA) Abstract: A selective review of recent progress in lattice QCD calculations of excited states and QCD resonances is presented. The challenges of extracting excited state energy levels and of their interpretation will be discussed, using data from recent simulations as examples. Emphasis will be placed on simulations that explicitly include multi-particle (meson-meson and meson-baryon) states in channels with either a low-lying QCD resonance or with a bound state close to threshold. | ||
| Tue, 2013-07-23 16:15 | (HS 5, Abbeanum) | |
| Binary black hole evolutions with improved initial data Wolfgang Tichy Florida Atlantic University | ||
| Thu, 2013-07-11 14:15 | ||
| N=1 supersymmetric Yang-Mills theory — Lattice supersymmetry and investigations beyond the standard modell Dr. Georg Bergner, Institut fuer Theoretische Physik Johann Wolfgang Goethe-Universität Frankfurt am Main | ||
| Wed, 2013-07-10 16:15 | (Sem.-Raum Nr. 384 (3. Stock) Carl-Zeiß-Str. 3) | |
| Neutron star constraints on modified theories of gravity Dr. Yavuz Eksi, TU Istanbul: | ||
| Mon, 2013-07-08 18:00 | (Aula) | |
| Modellierung und Simulation von Materialstrukturen und Eigenschaften Antrittsvorlesung: Prof. Dr. Marek Sierka Institut für Materialwissen-schaft und Werkstoff-technologie | ||
| Fri, 2013-07-05 16:15 | ||
| Binary Black Hole mergers in magnetized disks: Simulations in full General Relativity Dr. Roman Gold University of Illinois at Urbana-Champaign, USA | ||
| Thu, 2013-07-04 14:15 | (SR 5, Helmholtzweg 4) | |
| Some mathematical thoughts on Dyson-Schwinger equations (Karen Yeats, Simon-Fraser-University, Ca) Abstract: I will discuss how to view Dyson-Schwinger equations combinatorially, how they relate to classic combinatorial constructions, how we can use this structure to say physical things, and how in one very special case we can give a fully combinatorial solution. | ||
| Wed, 2013-07-03 16:15 | ||
| Ground state properties in non-relativistic Quantum Electrodynamics Prof. Dr. David Hasler, Math. Institut, FSU Universität Jena | ||
| Wed, 2013-07-03 10:15 | (HHW 3; HS 3) | |
| asymptotically safe gravity Prof. Dr. Daniel Litim, University of Sussex, Brighton, UK | ||
| Tue, 2013-07-02 16:15 | (SR 5, Helmholtzweg 4) | |
| asymptotically safe gravity Prof. Dr. Daniel Litim, University of Sussex, Brighton, UK | ||
| Mon, 2013-07-01 18:00 | (Aula) | |
| Die faszinierende Welt starker Felder: Experimente mit hochgeladenen Ionen Antrittsvorlesung: Prof. Dr. Thomas Stöhlker Helmholtz Institut Jena | ||
| Wed, 2013-06-26 16:15 | ||
| The discovery of a Higgs Boson at CERN - opening the door to a new world Prof. Kobel (Uni Dresden) Abstract: A thorough study of the properties of the new particle, found by the ATLAS and CMS experiments at 126 GeV in 2012 has meanwhile revealed: We indeed have found a Higgs Boson. According to the Standard Model it would be the first member of a so far unseen class of particles: a fundamental scalar, i.e. a Spin 0 state, not composed of any further constituents. If remains to be proven, if this is the really the case, and if there might be even more such Higgs particles, as predicted in many extensions of the Standard Model like Supersymmetry. But even within the Standard Model several vertices related to the Higgs Bosons remain to be observed. One is part of the scattering of two Vector Bosons VV->VV, where V=W,Z. For not violating basics rules of probability ("unitarity") this scattering requires in the Standard Model the regulating contribution of Higgs-Boson exchange. This so far unobserved scattering process thus constitutes a crucial test of the properties of the 126 GeV Higgs Boson, and of the mechanism of electroweak symmetry breaking. | ||
| Thu, 2013-06-20 16:15 | (Ernst-Abbe-Platz 2, R 3319) | |
| The Importance of Software in High-Performance Computing Prof. Dr. Christian Bischof TU Darmstadt, Informatik, Fachgebiet Scientific Computing | ||
| Mon, 2013-06-17 17:15 | (HS 1, Abbeanum) | |
| Attosecond Laser Physics Prof. Dr. Anne l'Huillier Lund University, Schweden | ||
| Thu, 2013-06-13 14:15 | ||
| Topolog. Aspekte von Eichtheorien III Prof. Frieder Lenz Universität Erlangen | ||
| Wed, 2013-06-12 16:15 | ||
| Topolog. Aspekte von Eichtheorien II Prof. Frieder Lenz Universität Erlangen | ||
| Tue, 2013-06-11 16:15 | ||
| Topolog. Aspekte von Eichtheorien I Prof. Frieder Lenz, Universität Erlangen | ||
| Fri, 2013-06-07 14:30 | ||
| On the Gribov problem in Yang-Mills theory (Olaf Lechtenfeld, Uni Hannover) | ||
| Thu, 2013-06-06 14:15 | (SR 5, Helmholtzweg 4) | |
| Ubiquitous QCD & LHC phenomenology Steffen Schuman, Univ. Goettingen | ||
| Wed, 2013-06-05 16:15 | ||
| Non-equilibrium steady states and charge fractionalization in Luttinger liquids Prof. Bernd Rosenov Universität Leipzig | ||
| Tue, 2013-06-04 16:15 | ||
| Forschungsschwerpunkte Prof. Martin Ammon, FSU Jena, PAF, TPI | ||
| Mon, 2013-06-03 17:15 | (HS 1, Abbeanum) | |
| Nichtlineare Dynamik von Licht in künstlichen photonischen Strukturen Habilitationsvorstellung Dr. Oleg Egorov Institut für Festkörpertheorie und -optik | ||
| Fri, 2013-05-31 14:00 | (HS 1 Physik, Max-Wien-Platz 1) | |
| 11. Alumni-Tag der PAF mit feierlicher Zeugnisübergabe FSU PAF, JENOPTIK, MLP, Rohde & Schwarz, HEPTAGON, werth Messtechnik | ||
| Tue, 2013-05-28 16:15 | ||
| AdS/CFT Prof. Martin Ammon, FSU Jena, PAF, TPI | ||
| Mon, 2013-05-27 17:15 | (HS 1, Abbeanum) | |
| Free-electron X-ray Lasers: Optical Lasers of the 21 st Prof. Dr. Jerry Hastings Stanford University, USA | ||
| Mon, 2013-05-27 14:00 | (URZ 28) | |
| Spectral analysis of quasi-normal modes of Schwarzschild black holes Robert Pannicke FSU Jena URZ 28 | ||
| Mon, 2013-05-13 17:15 | (HS 1, Abbeanum) | |
| Casimir-Lifshitz forces: vacuum fluctuations, quantum levitation and the future of nanomachines Prof. Dr. Federico Capasso Harvard School of Engineering and Applied Sciences, USA | ||
| Wed, 2013-05-08 16:15 | ||
| On the shape of rotating black-holes Dr. Martin Reiris Max Planck Institute for Gravitational Physics - AEI | ||
| Tue, 2013-05-07 16:15 | ||
| Emulating relativistic physics in waveguide arrays Prof. Dr. Alexander Szameit Universität Jena, IAP | ||
| Mon, 2013-05-06 17:15 | (HS 1, Abbeanum) | |
| Theoretische und rechnergestützte Photonik der komplexen mikro- und nanostrukturierten Materialien Habilitationsvorstellung: Dr. Dmitry Chigrin 1. Physikalisches Institut, RWTH Aachen | ||
| Thu, 2013-05-02 14:15 | (SR 5, Helmholtzweg 4) | |
| The Scattering Theory Approach to the Casimir Energy Prof. Noah Graham Middlebury College, USA | ||
| Tue, 2013-04-30 17:15 | ||
| Energy-Momentum Tensors and Energy Conditions with Worldline Numerics - Promotinsverteidigung Dipl.-Phys. Marco Schäfer FSU Jena, PAF, TPI | ||
| Thu, 2013-04-25 14:15 | (SR 5, Helmholtzweg 4) | |
| Simulating fermion production in 1+1 dimensional QED Dr. Florian Hebenstreit Universität Heidelberg | ||
| Tue, 2013-04-23 16:15 | ||
| Masterverteidigung Alexander Blinne Universität Jena | ||
| Mon, 2013-04-22 17:15 | (HS 1, Abbeanum) | |
| Neutrinos als Sonden für neue Physik Prof. Dr. Manfred Lindner MPI Heidelberg | ||
| Mon, 2013-04-15 18:00 | (Aula) | |
| Design und Analyse optischer Systeme Antrittsvorlesung: Prof. Dr. Herbert Gross Institut für Angewandte Physik | ||
| Wed, 2013-03-13 16:00 | (HS 2, Abbeanum) | |
| Quasi-Normal Modes Prof. Bernd Schmidt AEI Potsdam | ||
| Wed, 2013-03-06 16:15 | (HS 2, Abbeanum) | |
| Accurate and efficient GW phasing and it's implications MSc Anuradha Gupta Tata Institute of Fundamental Research, Mumbai, Indien | ||
Talks from 2012-10-01 up to 2013-02-28
| Thu, 2013-02-21 14:15 | ||
| Asymptotic Safety of Gravity in Tetrad Field Variables Dr. Ulrich Harst (Mainz U.) | ||
| Tue, 2013-02-19 16:15 | ||
| On Gluon spectral functions in finite temperature Yang-Mills theory Michael Haas (Uni Heidelberg) | ||
| Wed, 2013-02-13 16:15 | (HS2, Abbeanum) | |
| Metric-affine theories of gravity Herr Prof. Dr. Rainer Schimming and Herr Dr. Ahmad Fouad Universitaet Greifswald, Institut für Mathematik und Informatik, | ||
| Wed, 2013-01-30 16:15 | (HS 2, Abbeanum) | |
| Numerical Relativity in Spherical Polar Coordinates Prof. Thomas Baumgarte Bowdoin College, USA | ||
| Tue, 2013-01-29 17:15 | (HS 2, Helmholtzweg 5) | |
| Promotionsverteidigung : Binärsysteme kompakter Objekte in hoher postnewtonscher Näherung in den Eigendrehimpuls-Wechselwirkungen Dipl.-Phys. Johannes Hartung FSU, PAF, TPI | ||
| Mon, 2013-01-28 14:00 | (URZ 28) | |
| Numerical Relativity in Spherical Polar Coordinates: Calculations with the BSSN Formulation" Pedro Montero MPA Garching pdf at http://wwwsfb.tpi.uni-jena.de/VideoSeminar/ | ||
| Wed, 2013-01-23 16:15 | (HS2, Abbeanum) | |
| Exact results for QCD-like theories at high density Prof. Tilo Wettig Universität Regensburg | ||
| Tue, 2013-01-22 16:15 | (SR 5, Helmholtzweg 4) | |
| tba Dr. Michael Scherer ITP, Univ. Heidelberg | ||
| Mon, 2013-01-21 14:00 | (URZ 28) | |
| Numerical long-term integration of compact binary systems Jonathan Seyrich Universität Tübingen pdf at http://wwwsfb.tpi.uni-jena.de/VideoSeminar/ | ||
| Wed, 2013-01-16 16:15 | ||
| Informatk-Elemente in Computational Science Prof. Dr. Martin Bücker FSU Jena, Institut für Informatik | ||
| Mon, 2013-01-14 18:15 | (Aula der FSU) | |
| Antrittsvorlesung "Laser in der Medizin" Herrn Prof. Dr. Alexander Heisterkamp, FSU Jena, PAF, IAO | ||
| Mon, 2013-01-14 14:00 | (URZ 28) | |
| Nucleosynthesis in the ejecta of neutron-star mergers Andreas Bauswein MPA Garching pdf at http://wwwsfb.tpi.uni-jena.de/VideoSeminar/ | ||
| Wed, 2013-01-09 14:15 | (Besprechungsraum des IOQ) | |
| Introduction to the string-inspired worldline formalism II: sample calculations Christian Schubert Instituto de Física y Matemáticas, Universidad Michoacana de San Nicolás de Hidalgo, Mexico | ||
| Fri, 2012-12-21 16:15 | (HS 2, Abbeanum) | |
| Lichtablenkung im Gravitationsfeld einer starr rotierenden Staubscheibe Dvin Galstian Pour (TPI) (Verteidigung der Studienarbeit) | ||
| Mon, 2012-12-17 17:15 | (HS 1, Abbeanum) | |
| Quantum Physics with Ultra-Cold Atoms: from Bose-Einstein Condensation to Quantum Simulation Prof. Dr. Gerhard Birkl TU Darmstadt | ||
| Mon, 2012-12-17 14:00 | (URZ 28) | |
| event without name Dr. David Hilditch FSU Jena pdf at http://wwwsfb.tpi.uni-jena.de/VideoSeminar/ | ||
| Wed, 2012-12-12 16:15 | (HS 2, Abbeanum) | |
| Diplomvortrag: Starr rotierende Sterne maximaler Masse für verschiedene Zustandsgleichungen Student Erik Buchholz, FSU Jena, PAF, TPI | ||
| Fri, 2012-12-07 15:15 | (HS 2, Haus 2, HHW5) | |
| Non-perturbative Aspects of Non-linear Sigma Models (Dr.rer.nat.) M.Sc. Raphael Flore , FSU Jena, PAF, TPI | ||
| Thu, 2012-12-06 00:00 | (Rosensäle) | |
| GRK-1523-Day | ||
| Mon, 2012-12-03 14:00 | (URZ 28) | |
| General-relativistic neutrino leakage scheme and neutrino-induced collapse Filippo Galeazzi AEI Potsdam pdf at http://wwwsfb.tpi.uni-jena.de/VideoSeminar/ | ||
| Thu, 2012-11-29 00:00 | (Jena) | |
| Workshop: Strongly-Interacting Field Theories | ||
| Mon, 2012-11-26 14:00 | (URZ 28) | |
| Measuring the masses of white dwarf binaries - a multimessenger approach Nathan Johnson-McDaniel FSU Jena pdf at http://wwwsfb.tpi.uni-jena.de/VideoSeminar/ | ||
| Tue, 2012-11-20 16:15 | ||
| Fermionische Systeme auf gekrümmtem Hintergrund Stefan Lippoldt, FSU Jena | ||
| Tue, 2012-11-20 10:15 | ||
| Hadronic contributions to the anomalous magnetic moment of the muon Tobias Goecke, University of Giessen | ||
| Mon, 2012-11-19 17:15 | (HS 1, Abbeanum) | |
| Organische Halbleiter – Laborkuriosität oder Material der Zukunft? Prof. Dr. Karl Leo TU Dresden | ||
| Mon, 2012-11-19 14:00 | (URZ 28) | |
| Relativistic precession of orbits around neutron stars" Dr. Georgios Pappas Universität Tübingen pdf at http://wwwsfb.tpi.uni-jena.de/VideoSeminar/ | ||
| Thu, 2012-11-15 14:15 | ||
| Precision simulations of LHC physics (Frank Krauss, University of Durham) | ||
| Tue, 2012-11-06 16:15 | (SR 5, Helmholtzweg 4) | |
| Graph theory applied to seki positions in the game of Go Prof. Thomas Wolf, Brock University, Canada | ||
| Mon, 2012-11-05 17:15 | (Hörsaal 1 Abbeanum, Fröbelstieg 1 (PAF Kolloquium)) | |
| Binary Black Hole Mergers Prof. Dr. Thomas W. Baumgarte Bowdoin College, USA | ||
| Mon, 2012-11-05 14:00 | (URZ 28) | |
| Numerical solution of the 2+1 Teukolsky equation on a hyperboloidal foliation of the Kerr spacetime Enno Harms MSc. FSU Jena | ||
| Fri, 2012-11-02 17:00 | (HS 2, Abbeanum) | |
| Post-Newtonsche Entwicklung einer starr rotierenden Staubscheibe mit konstanter spezifischer Ladung Stefan Palenta FSU Jena | ||
| Fri, 2012-11-02 16:15 | (HS 2, Abbeanum) | |
| Herleitung der Kerr-Newman-Lösung über ein Randwertproblem Rene Richter FSU Jena | ||
| Tue, 2012-10-30 16:15 | (SR 5, Helmholtzweg 4) | |
| Hyperdeterminants as integrable 3D difference equations Prof. Thomas Wolf, Brock University, Canada | ||
| Mon, 2012-10-29 14:00 | (URZ 28) | |
| Initial data for rotating black holes on hyperboloidal slices David Schinkel DP FSU Jena pdf at http://wwwsfb.tpi.uni-jena.de/VideoSeminar/ | ||
| Tue, 2012-10-16 16:15 | (SR 5, Helmholtzweg 4) | |
| About the integrability of ordinary matrix differential equations Prof. Thomas Wolf, Brock University, Canada | ||
| Mon, 2012-10-15 17:15 | (Hörsaal 1 Abbeanum, Fröbelstieg 1 (PAF Kolloquium)) | |
| Gravitational Wave Science Prof. Dr. B. Schutz MPI für Gravitationsphysik Potsdam | ||
| Thu, 2012-10-11 00:00 | (Oppurg) | |
| Workshop: Numerical and Mathematical Relativity The aim of the workshop is to give numerical relativists the opportunity to learn about topics in mathematical relativity beyond the level that they would typically be discussed by the numerical relativity community, and to inform the mathematical community about the current state of the art in numerical simulations. To this end talks will be presented over the following topics:
Please contact us for further details. NRMR12 AT uni-jena.de Organizers: David Hilditch, Andreas Weyhausen and Bernd Brügmann from the University Jena | ||
| Wed, 2012-10-10 16:15 | (HS2, Abbeanum) | |
| Initial data for rotating black holes on hyperboloidal slices Student Schinkel, David FSU, Jena, PAF, TPI | ||
Talks from 2012-03-01 up to 2012-09-30
| Thu, 2012-09-27 16:15 | (HS 2, Haus 2, HHW5) | |
| Low-Dimensional Chiral Physics: Gross-Neveu Universality and Magnetic Catalysis Dipl.-Phys. Daniel Scherer FSU, Jena, PAF, TPI | ||
| Wed, 2012-09-26 15:00 | (HS 2, Abbeanum) | |
| Gauge drivers for the z4c formulation Student Moritz Feyerabend FSU, PAF, TPI | ||
| Wed, 2012-09-26 14:30 | (HS 2, Abbeanum) | |
| Inital data for neutron star binaries Student Niclas Moldenhauer FSU, PAF, TPI | ||
| Wed, 2012-09-26 14:00 | (HS 2, Abbeanum) | |
| Numerical Methods for the Construction of Black Hole Initial Data Student Martin Fruhnert FSU Jena, PAF,TPI | ||
| Fri, 2012-09-21 14:30 | (HS 2, Abbeanum) | |
| Black Hole Data in Axial Symmetry Student Tim Dietrich FSU, PAF, TPI | ||
| Fri, 2012-09-21 14:00 | (HS 2, Abbeanum) | |
| Numerical solution of the 2+1 Teukolsky equation on a hyperboloidal foliation of the Kerr spacetime Student Enno Harms FSU Jena, PAF, TPI | ||
| Tue, 2012-07-31 16:00 | (SR 5, Helmholtzweg 4) | |
| Weyl metrisability for projective surfaces Dr. Thomas Mettler ETH Zürich | ||
| Wed, 2012-07-25 16:15 | ||
| Problems and Alternatives of the Lambda Cold Dark Matter Model Dr. Tonatiuh Matos Cinvestav, Mexico | ||
| Fri, 2012-07-20 16:15 | ||
| Towards 4th post-Newtonian 2-point-mass ADM Hamiltonian Prof. Dr. P. Jaranowski University Bialystok Polen | ||
| Wed, 2012-07-18 16:15 | ||
| Electromagnetic fields of a trefoil knot Prof. Dr. V. V. Sreedhar Chennai Mathematical Institute, Indien | ||
| Tue, 2012-07-17 16:15 | ||
| Observable consequences of dark energy Prof. Matthias Bartelmann Ruprecht-Karls-Universität Heidelberg | ||
| Mon, 2012-07-16 17:15 | (Hörsaal 1 Abbeanum, Fröbelstieg 1 (PAF Kolloquium)) | |
| Habilitationsvorstellung: Beobachtungen zur Planetenentstehung Dr. Markus Mugrauer Astrophysikalisches Institut, FSU Jena | ||
| Mon, 2012-07-16 14:00 | ||
| tba Dr. Wolfgang Tichy Florida Atlantic University | ||
| Thu, 2012-07-12 14:15 | (SR 5, Helmholtzweg 4) | |
| On the Physical Quantity in Time Symmetric Formulation of Quantum Mechanics Prof. Izumi Tsutsui KEK, Japan | ||
| Wed, 2012-07-11 16:15 | (HS 2, Abbeanum) | |
| Atomic Quantum Simulation of Dynamical Gauge Fields using Quantum Links Prof. Uwe-Jens Wiese Institute for Theoretical Physics, Albert Einstein Center for Fundamental Physics | ||
| Tue, 2012-07-10 17:15 | ||
| Phase diagrams of excetional and supersymmetric lattice gauge theories Dipl.-Phys. Björn Wellegehausen (Verteidigung der Dissertation) Theoretisch-Physikalisches Institut, FSU Jena | ||
| Mon, 2012-07-09 14:00 | ||
| The evolution of the f-mode instability Dr. Andrea Passamonti Universität Tübingen slides | ||
| Wed, 2012-07-04 16:15 | ||
| Compact Stars and the Nuclear Equation-of-State from Heavy-Ion Data Prof. Schaffner-Bielich Heidelberg | ||
| Mon, 2012-07-02 18:00 | ||
| Antrittsvorlesung: Teilchenbeschleunigung mit Hochleistungsfasern Prof. Dr. Malte Kaluza Institut für Optik und Quantenelektronik, FSU Jena | ||
| Thu, 2012-06-28 17:00 | (HS 2, Helmholtzweg 5) | |
| Critical phenomena in (2+1)-dimensional relativistic fermion systems Dipl.-Phys. Lukas Janssen Theoretisch-Physikalisches Institut, FSU Jena | ||
| Thu, 2012-06-28 14:15 | ||
| Introduction to conformal invariance in QFT Prof. Harald Dorn Humboldt-Universität zu Berlin | ||
| Wed, 2012-06-27 16:15 | ||
| Introduction to conformal invariance in QFT Prof. Harald Dorn Humboldt-Universität zu Berlin | ||
| Thu, 2012-06-21 14:15 | ||
| Exotic supersymmetries of finite-gap and reflectionless systems Prof. Dr. Mikhail Plyushchay Universidad de Santiago de Chile | ||
| Tue, 2012-06-19 16:15 | ||
| Loss of linear momentum from inspiralling compact binaries in quasi-circular orbits and associated recoil Chandra Kant Mishra Raman Research Institutes in Bangalore, India | ||
| Mon, 2012-06-18 17:15 | (Hörsaal 1 Abbeanum, Fröbelstieg 1 (PAF Kolloquium)) | |
| Physik in Alltagskontexten lehren Prof. Dr. R. Müller TU Braunschweig | ||
| Mon, 2012-06-18 14:00 | ||
| CPU vs. GPU: A finite difference example Gerhard Zumbusch FSU Jena 20120618-Zumbusch.pdf | ||
| Thu, 2012-06-14 14:15 | ||
| Resonances and Unitarity in Weak Boson Scattering at the LHC Dr.Jürgen Reuter DESY Hamburg | ||
| Wed, 2012-06-13 16:15 | (HS 2, Abbeanum) | |
| Introduction to Perturbative Quantum Field Theory and QCD Dr. Jürgen Reuter DESY Hamburg | ||
| Thu, 2012-06-07 14:15 | ||
| About densities of states and the 3d O(2) quantum theory at finite densities Dr. Kurt Langfeld University of Plymouth, England | ||
| Wed, 2012-06-06 16:15 | ||
| The Euler-Heisenberg Effective Action: History and Scientific Legacy Prof. Gerald Dunne University of Connecticut | ||
| Mon, 2012-06-04 17:15 | (Hörsaal 1 Abbeanum, Fröbelstieg 1 (PAF Kolloquium)) | |
| A Theorist's Take on LHC Prof. Dr. Tilmann Plehn Universität Heidelberg | ||
| Thu, 2012-05-24 14:00 | (SR 5, Helmholtzweg 4) | |
| Constraining the Higgs boson mass: a non-perturbative lattice study Dr. Karl Jansen DESY Zeuthen | ||
| Tue, 2012-05-22 16:00 | ||
| Spontaneous Breaking of Scale Invariance, Trace Anomaly and Supersymmetry Prof. M. Moshe Israel Institute of Technology | ||
| Mon, 2012-05-21 17:00 | (HS 1, Abbeanum) | |
| Dunkle Materie, dunkle Energie - moderne Entwicklungen in der Kosmologie Prof. Dr. Hanns Ruder Universität Tübingen | ||
| Tue, 2012-05-15 16:00 | ||
| Non-perturbative gauge-fixing PD Dr. Axel Maas FSU Jena | ||
| Mon, 2012-05-14 17:00 | ||
| Antiwasserstoff Prof. Dr. Jochen Walz Universität Mainz | ||
| Mon, 2012-05-14 14:00 | (URZ 28) | |
| Black-hole production from ultrarelativistic collisions Dr. Kentaro Takami AEI Potsdam | ||
| Fri, 2012-05-11 16:00 | ||
| Analytische Untersuchungen der Geodäten in der Kerr-Metrik (Studienarbeit) Kevin Meier FSU Jena | ||
| Wed, 2012-05-09 16:00 | (HS 2, Abbeanum) | |
| Einstein's Zürich Notebook and his Journey to General Relativity Prof. Straumann, Norbert Universität Zürich | ||
| Tue, 2012-05-08 16:00 | ||
| Perturbative gauge-fixing PD Dr. Axel Maas FSU Jena | ||
| Mon, 2012-05-07 17:00 | ||
| Attosekunden-Laserphysik Prof. Dr. Paul Corkum NRC Ottawa, Kanada | ||
| Mon, 2012-05-07 15:50 | ||
| Solving post-Newtonian equations of motion with spin exactly Dr. Steven Hergt FSU Jena URZ 28 | ||
| Fri, 2012-05-04 16:15 | ||
| Listening to Gravitational Waves with Pulsar Timing Arrays Xihao Deng Department of Physics, Penn State University Park,Pennsylvania HS 2, Abbeanum | ||
| Fri, 2012-04-27 16:00 | ||
| The construction of binary trumpet black hole initial data Dr. Bai Mathematical Institute, University of Bourgogne, Dijon | ||
Talks from 2011-10-01 up to 2012-02-29
| Thu, 2012-02-23 11:00 | ||
| Dispersion forces: Analysis of local-field effects and inclusion of excitation Agnes Samballe Theoretisch-Physikalisches Institut, FSU Jena | ||
| Thu, 2012-02-16 14:00 | ||
| Lecture course QFT in Curved Space-Time Prof. Dr. Ilya Shapiro Universidade Federal de Juiz de Fora, Juiz de Fora (Brasilien) | ||
| Tue, 2012-02-14 00:00 | (Hannover) | |
| Semiannual Meeting The SFB/TR7 semiannual meeting on 14th and 15th February, 2012 | ||
| Thu, 2012-02-09 14:00 | ||
| Effective Action and Renormalization Groups for QFT in Curved Space-Time, with applications to cosmology and astrophysics. Prof. Dr. Ilya Shapiro Universidade Federal de Juiz de Fora, Juiz de Fora (Brasilien) | ||
| Tue, 2012-02-07 16:00 | ||
| Lecture course QFT in Curved Space-Time Prof. Dr. Ilya Shapiro Universidade Federal de Juiz de Fora, Juiz de Fora (Brasilien) | ||
| Mon, 2012-02-06 14:00 | ||
| Resolving multiple supermassive black hole binaries with pulsar timing arrays URZ 28 (SFB/TR7 Videoseminar) Stanislav Babak or Alberto Sesana AEI Potsdam | ||
| Mon, 2012-01-30 17:00 | (HS 2, Abbeanum) | |
| Stabilität dynamischer mechanischer Systeme und der Lyapunov-Exponent Dr. Jens Braun Theoretisch-Physikalisches Institut, FSU Jena | ||
| Mon, 2012-01-30 14:00 | ||
| Extreme-mass-ratio inspirals: Modeling eccentric orbits on Schwarzschild Seth Hopper AEI Potsdam | ||
| Wed, 2012-01-25 16:00 | ||
| Applications of gauge/gravity duality Prof. Dr. Johanna Erdmenger Max-Planck-Institut für Physik, München | ||
| Mon, 2012-01-23 18:00 | (Aula) | |
| Antrittsvorlesung: Organische Moleküle als Bausteine für die Nanoelektronik Prof. Dr. Torsten Fritz Institut für Festkörperphysik | ||
| Mon, 2012-01-23 14:00 | ||
| Oscillations of relativistic tori and implications for modelling kHz-QPOs in neutron-star X-ray binaries Pedro Montero MPA Garching | ||
| Fri, 2012-01-20 16:00 | ||
| Area-Angular Momentum-Charge inequalities for black hole horizons Dr. Jose Luis Jaramillo Max-Planck-Institut für Gravitationsphysik (Albert-Einstein-Institut Potsdam) | ||
| Thu, 2012-01-19 14:00 | ||
| Lattice Study of Dense Matter: a Fugue in Two Colors Prof. Simon Hands University of Swansea, UK | ||
| Mon, 2012-01-16 17:00 | ||
| Fermion Interactions and Universal Behavior in Strongly Interacting Theories Dr. Jens Braun Theoretisch-Physikalisches Institut, FSU Jena | ||
| Mon, 2012-01-16 14:00 | ||
| The self-consistent field method for constructing stellar equilibria: when & why is convergence attained? URZ 28 (SFB/TR7 Videoseminar) Dr. Charalampos Markakis FSU Jena | ||
| Fri, 2012-01-13 16:00 | ||
| Black hole dynamics in generic space-times Dip.-Phys. Helvi Witek CENTRA/IST, Lissabon | ||
| Mon, 2012-01-09 17:00 | ||
| Vorstellungsvortrag einer Habilitandin Dr. Cornelia Jäger Universität Jena, Institut für Festkörperphysik | ||
| Fri, 2012-01-06 16:00 | ||
| How to reconstruct a metric by its unparameterized geodesics Prof. Dr. Vladimir Matveev Mathematisches Institut, FSU Jena, | ||
| Tue, 2011-12-20 16:00 | ||
| Continuous Sequential Importance Sampling for Irreducible Diffusions Dr. Krzysztof Latuszynski University of Warwick, UK | ||
| Mon, 2011-12-19 16:00 | ||
| Lösungen der Einstein-Maxwell-Gleichungen mit quasistatischen Übergängen zu Schwarzen Löchern (Verteidigung der Diplomarbeit) Moritz Hütten Theoretisch-Physikalisches Institut, Jena | ||
| Tue, 2011-12-13 16:00 | ||
| Open Tractability Problems Prof. Henryk Wozniakowski Columbia University New York | ||
| Mon, 2011-12-12 17:00 | ||
| Dunkle Materie in der galaktischen Sonnenumgebung? Wie man die Materiedichte in der Milchstraßenscheibe bestimmt Prof. Dr. Oliver Schwarz Universtität Siegen | ||
| Mon, 2011-12-12 14:00 | ||
| Searching for non-Kerr compact objects Dr. Georgios Loukes-Gerakopoulos FSU Jena | ||
| Wed, 2011-12-07 16:30 | ||
| Die Entwicklung der Fakultät Prof. Dr. Bernd Brügmann und die Fachschaft der PAF | ||
| Wed, 2011-12-07 14:00 | (Seminarraum 308, Carl-Zeiß-Str. 3) | |
| The dynamics of fast rotating and strongly magnetised relativistic stars Prof. Dr.Kostas Kokkotas Universität Tübingen | ||
| Tue, 2011-12-06 17:00 | ||
| Numerical Simulations of Neutron Stars in General Relativistic Hydrodynamics Marcus Thierfelder Theoretisch-Physikalisches Institut, FSU Jena | ||
| Mon, 2011-12-05 14:00 | ||
| Stratified and superconducting neutron star equilibria Sam Lander Universität Tübingen | ||
| Mon, 2011-11-28 16:00 | (SR 5, Helmholtzweg 4) | |
| Magnetically driven superconductivity in rare earth intermetallics Prof. Dr. Stefan Kirchner Max-Planck-Institut für Physik komplexer Systeme, Dresden | ||
| Mon, 2011-11-28 14:00 | ||
| The connection between missing stellar cusps in galactic nuclei and general relativity Pau Amaro Seoane AEI Potsdam | ||
| Wed, 2011-11-23 16:00 | ||
| Simulation of quantum vacuum processes in ultra-intense laser fields Prof. Dr. Hartmut Ruhl LMU München | ||
| Tue, 2011-11-22 07:00 | ||
| Hit-and-run for numerical integration Dr. Daniel Rudolf Mathematisches Institut, FSU Jena | ||
| Mon, 2011-11-21 14:00 | ||
| Numerical resistivity and viscosity Tomasz Rembiasz MPA Garching | ||
| Fri, 2011-11-18 16:00 | ||
| On the integrability of the geodesic flows of stationary axisymmetric vacuum spacetimes Prof. Dr. V. Matveev Mathematisches Institut, FSU Jena | ||
| Thu, 2011-11-17 14:00 | ||
| The spectrum of and forces between B mesons from lattice QCD Prof. Dr. Marc Wagner Goethe-Universität Frankfurt am Main | ||
| Tue, 2011-11-15 16:00 | ||
| Spherically symmetric constant negative scalar curvature 3-manifolds: or, more than one wants to know about solutions to ∇2Φ - Φ5 = 0 Prof. Niall Ó Murchadha University College Cork, Ireland | ||
| Mon, 2011-11-14 18:00 | (Aula der FSU) | |
| Physik der Biomaterialien: Composites auf den Zahn gefühlt Prof. Dr. David C. Watts University of Manchester, UK | ||
| Mon, 2011-11-14 14:00 | ||
| Black hole on a GPU Bernd Brügmann, FSU Jena | ||
| Thu, 2011-11-10 11:00 | ||
| Magnetospheres of compact objects in Force-Free Plasma Dr. Ruiz University of the Balearic Islands | ||
| Tue, 2011-11-08 17:00 | ||
| Motion and gravitational wave emission of spinning compact binaries Manuel Tessmer Theoretisch-Physikalisches Institut, FSU Jena | ||
| Mon, 2011-11-07 14:00 | ||
| New design, new movie - how do we want to present our work through the transregio outreach project? An overview a request for feedback and input. Hans-Peter Nollert, Universtität Tübingen | ||
| Tue, 2011-11-01 16:00 | ||
| Many-Body Perturbation Theory for Electronic Excitations Prof. Giancarlo Cappellini Cagliari University | ||
| Thu, 2011-10-27 17:00 | (HS 2, Helmholtzweg 5) | |
| Approximation des äußeren Gravitationsfeldes rotierender Neutronensterne durch exakte Lösungen der EINSTEIN-Gleichungen Christian Liutik (geb.Teichmüller) Theoretisch-Physikalisches Institut, FSU Jena | ||
| Tue, 2011-10-25 16:15 | (SR 5, Helmholtzweg 4) | |
| "Hunting Strings at LHC" Dr. Oliver Schlotterer AEI Potsdam | ||
| Mon, 2011-10-24 17:00 | ||
| Thermodynamics of small systems Prof. Dr. Andreas Engel, Universität Oldenburg | ||
| Mon, 2011-10-24 14:00 | ||
| "Maximum elastic deformations of relativistic stars" Nathan Johnson-McDaniel FSU Jena URZ 28 | ||
| Wed, 2011-10-19 16:00 | ||
| Phases of QCD and Nuclear Chiral Thermodynamics Prof. Dr. Wolfram Weise, TU München | ||
| Mon, 2011-10-17 17:00 | (HS 4, Abbeanum) | |
| Wie man Elementarteilchen beschreibt (Vortrag im Rahmen eines Umhabilitationsverfahrens Dr. Axel Maas Universität Jena, Theoretisch-Physikalisches-Institut | ||
| Thu, 2011-10-06 15:00 | ||
| Complex singularities in finite density QCD Prof. Dr. Hiroshi Yoneyama Universität Saga, Japan | ||