Phase Diagram of Gross-Neveu Model at Finite Temperature, Density and Constant Curvature

Abstract

We discuss a phase structure of chiral symmetry breaking in the Gross-Neveu model at finite temperature, density and constant curvature. The effective potential is evaluated in the leading order of the $1/N$-expansion and in a weak curvature approximation. The third order critical line is found on the critical surface in the parameter space of temperature, chemical potential and constant curvature.

arXiv comment11 pages, Latex. 3 figures (eps files)

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