The 2d Gross-Neveu Model at Finite Temperature and Density with Finite Corrections

Details The 2d Gross-Neveu Model at Finite Temperature and Density with Finite Corrections The 2d Gross-Neveu Model at Finite Temperature and Density with Finite Corrections

2007-04-21

arxiv.org/abs/0704.2843v1

Braz.J.Phys.37:258-264,2007

Physics

High Energy Physics

High Energy Physics - Phenomenology

7 pages, 8 figures

Scientific paper

10.1590/S0103-97332007000200016

We use the linear $\delta$ expansion, or optimized perturbation theory, to evaluate the effective potential for the two dimensional Gross-Neveu model at finite temperature and density obtaining analytical equations for the critical temperature, chemical potential and fermionic mass which include finite $N$ corrections. Our results seem to improve over the traditional large-N predictions.

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