322 citations · 3.7k across the 72 of their papers we have counts for
6 papers · 1 filter
Inhomogeneous phases in one-dimensional mass- and spin-imbalanced Fermi gases
Dietrich Roscher, Jens Braun, Joaquín E. Drut
We compute the phase diagram of strongly interacting fermions in one dimension at finite temperature, with mass and spin imbalance. By including the possibility of the existence of…
The Effect of Fluctuations on the QCD Critical Point in a Finite Volume
Ralf-Arno Tripolt, Jens Braun, Bertram Klein +1
We investigate the effect of a finite volume on the critical behavior of the theory of the strong interaction (QCD) by means of a quark-meson model for two quark flavors. In partic…
Fermi gases with imaginary mass imbalance and the sign problem in Monte Carlo calculations
Dietrich Roscher, Jens Braun, Jiunn-Wei Chen +1
Fermi gases in strongly coupled regimes, such as the unitary limit, are inherently challenging for many-body methods. Although much progress has been made with purely analytic meth…
Towards a Renormalization Group Approach to Density Functional Theory - General Formalism and Case Studies -
Sandra Kemler, Jens Braun
We discuss a two-point particle irreducible (2PPI) approach to many-body physics which relies on a renormalization group (RG) flow equation for the associated effective action. In…
QCD thermodynamics of effective models with an improved Polyakov-loop potential
Rainer Stiele, Lisa M. Haas, Jens Braun +2
We analyse the role of the quark backreaction on the gauge-field dynamics and its impact on the Polyakov-loop potential. Based on our analysis we construct an improved Polyakov-loo…
Improved Polyakov-loop potential for effective models from functional calculations
Lisa M. Haas, Rainer Stiele, Jens Braun +2
We investigate the quark backreaction on the Polyakov loop and its impact on the thermodynamics of quantum chromodynamics. The dynamics of the gluons generating the Polyakov-loop p…