Full Phase Diagram of the Massive Gross-Neveu Model

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dc.creatorSchnetz, Oliver
dc.creatorThies, Michael
dc.creatorUrlichs, Konrad
dc.date2005-11-21
dc.date2005-12-06
dc.date.accessioned2026-07-07T10:45:19Z
dc.date.available2026-07-07T10:45:19Z
dc.descriptionThe massive Gross-Neveu model is solved in the large N limit at finite temperature and chemical potential. The scalar potential is given in terms of Jacobi elliptic functions. It contains three parameters which are determined by transcendental equations. Self-consistency of the scalar potential is proved. The phase diagram for non-zero bare quark mass is found to contain a kink-antikink crystal phase as well as a massive fermion gas phase featuring a cross-over from light to heavy effective fermion mass. For zero bare quark mass we recover the three known phases kink-antikink crystal, massless fermion gas, and massive fermion gas. All phase transitions are shown to be of second order. Equations for the phase boundaries are given and solved numerically. Implications on condensed matter physics are indicated where our results generalize the bipolaron lattice in non-degenerate conducting polymers to finite temperature.
dc.description36 pages, 6 figures; v2: subsect. 4.8 added (zero temperature limit), minor corrections, 37 pages
dc.identifierhttps://arxiv.org/abs/hep-th/0511206
dc.identifierhttp://arxiv.org/abs/hep-th/0511206
dc.identifierAnnalsPhys.321:2604-2637,2006
dc.identifierdoi:10.1016/j.aop.2005.12.007
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/182877
dc.subjectHigh Energy Physics - Theory
dc.subjectStrongly Correlated Electrons
dc.subjectHigh Energy Physics - Lattice
dc.subjectHigh Energy Physics - Phenomenology
dc.titleFull Phase Diagram of the Massive Gross-Neveu Model
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