Ref HAL: in2p3-00148882_v1
Ref Arxiv: 0704.2843
DOI: 10.1590/S0103-97332007000200016
WoS: 000246477800016
Ref. & Cit.: NASA ADS
Exporter : BibTex | endNote
7 Citations
Résumé:

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.

Commentaires: 7 pages, 8 figures