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arXiv · hep-th/0302092

Revised Phase Diagram of the Gross-Neveu Model

Michael Thies·Konrad Urlichs
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Abstract

We confirm earlier hints that the conventional phase diagram of the discrete chiral Gross-Neveu model in the large N limit is deficient at non-zero chemical potential. We present the corrected phase diagram constructed in mean field theory. It has three different phases, including a kink-antikink crystal phase. All transitions are second order. The driving mechanism for the new structure of baryonic matter in the Gross-Neveu model is an Overhauser type instability with gap formation at the Fermi surface.

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Michael Thies, Konrad Urlichs. 2003-02-19. Revised Phase Diagram of the Gross-Neveu Model. https://doi.org/10.1103/physrevd.67.125015

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