Revised Phase Diagram of the Gross-Neveu Model
High Energy Physics - Theory
2009-11-10 v2 High Energy Physics - Phenomenology
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.
Keywords
Cite
@article{arxiv.hep-th/0302092,
title = {Revised Phase Diagram of the Gross-Neveu Model},
author = {Michael Thies and Konrad Urlichs},
journal= {arXiv preprint arXiv:hep-th/0302092},
year = {2009}
}
Comments
Revtex, 12 pages, 15 figures; v2: Axis labelling in Fig. 9 corrected