276 citations · 3.7k across the 48 of their papers we have counts for
48 papers
Asymptotic freedom in a strongly interacting scalar quantum field theory in four Euclidean dimensions
Jürgen Berges, Razvan Gurau, Thimo Preis
We show that scalar quantum field theory in four Euclidean dimensions with global symmetry and imaginary tetrahedral coupling is asymptotically free and bounded from below…
Stable and unstable perturbations in universal scaling phenomena far from equilibrium
Thimo Preis, Michal P. Heller, Jürgen Berges
We study the dynamics of perturbations around nonthermal fixed points associated to universal scaling phenomena in quantum many-body systems far from equilibrium. For an N-componen…
Condensation and thermalization of an easy-plane ferromagnet in a spinor Bose gas
Maximilian Prüfer, Daniel Spitz, Stefan Lannig +3
The extensive control of spin makes spintronics a promising candidate for future scalable quantum devices. For the generation of spin-superfluid systems, a detailed understanding o…
Equal-time approach to real-time dynamics of quantum fields
Robert Ott, Torsten V. Zache, Jürgen Berges
We employ the equal-time formulation of quantum field theory to derive effective kinetic theories, first for a weakly coupled non-relativistic Bose gas, and then for a strongly cor…
Thermalization dynamics of a gauge theory on a quantum simulator
Zhao-Yu Zhou, Guo-Xian Su, Jad C. Halimeh +7
Gauge theories form the foundation of modern physics, with applications ranging from elementary particle physics and early-universe cosmology to condensed matter systems. We perfor…
Collisional strong-field QED kinetic equations from first principles
Gregor Fauth, Jürgen Berges, Antonino Di Piazza
Starting from nonequilibrium quantum field theory on a closed time path, we derive kinetic equations for the strong-field regime of quantum electrodynamics (QED) using a systematic…