Speaker
Michael Mandl
(FSU Jena)
Description
Four-fermion theories are widely appreciated as toy models for QCD and are also used in numerous condensed-matter applications. We investigate such theories, namely the 1+1 dimensional (chiral) Gross-Neveu models, at finite temperature and density, where mean field studies predict the existence of inhomogeneous phases, i.e., phases where the chiral condensate has a non-trivial spatial dependence. We discuss the fate of these phases when going to a finite number of fermion flavors on the lattice.
