The 2d gross-neveu model at finite temperature and density with finite N corrections

AUTOR(ES)

Kneur, Jean-Loïc, Pinto, Marcus Benghi, Ramos, Rudnei O.

FONTE

Brazilian Journal of Physics

DATA DE PUBLICAÇÃO

2007-03

RESUMO

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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