# Quantum Field Theory

Symmetries and Phase Transitions —

**Strongly Interacting Systems**— Quantum Vacuum Phenomena — Particle Physics PhenomenologyMany long-standing problems in fundamental physics require theoretical methods that can deal with strong interactions in a controlled manner. Prominent examples are the problem of confinemt and chiral symmetry breaking in Quantum Chromodynamics (the theory of the Strong Force), or condensate formation in fermionic particle systems.

We develop and apply new theoretical methods for facing the challenge posed by strongly interacting systems. We work with a variety of numerical as well as analytical tools such as lattice quantum field theory and functional renormalization methods. Our goal is to solve strong-coupling problems in particle physics and complex many-body systems.

Contact: Prof. Ammon, Prof. Gies, Prof. Wipf, PD Maas