Tricritical behavior of the massive chiral Gross-Neveu model

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dc.creatorBoehmer, Christian
dc.creatorThies, Michael
dc.creatorUrlichs, Konrad
dc.date2007-02-26
dc.date2007-04-30
dc.date.accessioned2026-07-07T10:22:27Z
dc.date.available2026-07-07T10:22:27Z
dc.descriptionThe phase diagram of the massive chiral Gross-Neveu model (the 1+1-dimensional Nambu-Jona-Lasinio model at large N) is investigated in the vicinity of the tricritical point. Using the derivative expansion, the grand canonical potential is cast into the form of a Ginzburg-Landau effective action. Minimization of this action by variational and numerical methods reveals both 1st and 2nd order phase transitions to a chiral crystal phase, separated by a tricritical line. These findings are contrasted to the massive Gross-Neveu model with discrete chiral symmetry where only 2nd order transitions have been observed.
dc.description10 pages, 10 figures; v2: More details about perturbation theory given, cf Eqs. (46-48)
dc.identifierhttps://arxiv.org/abs/hep-th/0702201
dc.identifierhttp://arxiv.org/abs/hep-th/0702201
dc.identifierPhys.Rev.D75:105017,2007
dc.identifierdoi:10.1103/PhysRevD.75.105017
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/175520
dc.subjectHigh Energy Physics - Theory
dc.subjectHigh Energy Physics - Lattice
dc.subjectHigh Energy Physics - Phenomenology
dc.titleTricritical behavior of the massive chiral Gross-Neveu model
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