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Schlagwörter:
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Zusammenfassung:
The Renormalization Group flow equations obtained by means of a proper time regulator are used to analyze the restoration
of the discrete chiral symmetry at non-zero density and temperature in the Gross–Neveu model in d = 2 + 1 dimensions. The
effects of the wave function renormalization of the auxiliary scalar field on the transition have been studied. The analysis is
performed for a number of fermion flavors Nf = 12 and the limit of large Nf is also considered. The results are compared with
those coming from lattice simulations.