PUB - Publikationen an der Universität Bielefeld

In a recent work [J. Lenz et al., Phys. Rev. D 101, 094512 (2020)] we studied the phase structure of the Gross-Neveu (GN) model in 1+1 dimensions at finite number of fermion flavors Nf=2,8,16, finite temperature and finite chemical potential using lattice field theory. Most importantly, we found an inhomogeneous phase at low temperature and large chemical potential, quite similar to the analytically solvable Nf→∞ limit. In the present work we continue our lattice field theory investigation of the finite-Nf GN model by studying the formation of baryons, their spatial distribution and their relation to the chiral condensate. As a preparatory step we also discuss a linear coupling of lattice fermions to the chemical potential.