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

H.-T. Sato; S. Kanemura

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

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arxiv hep-th/9412149 v1 pith:WGYFQU4C submitted 1994-12-16 hep-th

S. Kanemura , H.-T. Sato This is my paper · ORCID

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keywords curvatureconstanttemperaturecriticaldensityfinitegross-neveumodel

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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.

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Chiral symmetry and curvature bounds in de Sitter spacetime
hep-th 2026-07 reject novelty 4.0 of 10

In the NJL model on de Sitter with an exponential proper-time cutoff, requiring a real constituent fermion mass imposes Λ_cosmo ≤ 6Λ_UV²/e².

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