The 2+1 Dimensional NJL Model at Finite Temperature

Details The 2+1 Dimensional NJL Model at Finite Temperature The 2+1 Dimensional NJL Model at Finite Temperature

2000-07-25

arxiv.org/abs/hep-ph/0007284v2

Phys.Lett. B491 (2000) 367-374

Physics

High Energy Physics

High Energy Physics - Phenomenology

14 pages, no figures, some discussion and references added

Scientific paper

10.1016/S0370-2693(00)01046-7

We decribe properties of 2+1-dimensional Nambu-Jona-Lasinio (NJL) models at finite-temperature, beginning with the model with a discrete chiral symmetry. We then consider the model with a continuous $U(1) \times U(1)$ chiral symmetry, describing the restoration of the symmetry at finite temperature. In each case, we compute the free energy and comment on a recently proposed constraint based upon it. We conclude with a brief discussion of NJL models with larger chiral symmetries.

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