%0 Journal Article
%T The 2d Gross-Neveu Model at Finite Temperature and Density with Finite Corrections
%+ Laboratoire de Physique Théorique et Astroparticules (LPTA)
%A Kneur, J.-L.
%A Pinto, M. B.
%A Ramos, R. O.
%Z 7 pages, 8 figures
%< avec comité de lecture
%Z LPTA/06-64
%@ 0103-9733
%J Brazilian Journal of Physics
%I Springer Verlag
%V 37/1
%P 258-264
%8 2007
%D 2007
%Z 0704.2843
%R 10.1590/S0103-97332007000200016
%K Non perturbative methods
%K Gross-Neveu model
%K Finite temperature
%K Finite density
%Z Physics [physics]/Condensed Matter [cond-mat]/Other [cond-mat.other]
%Z Physics [physics]/High Energy Physics - Phenomenology [hep-ph]
%Z Physics [physics]/High Energy Physics - Theory [hep-th]Journal articles
%X 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.
%G English
%L in2p3-00148882
%U https://hal.in2p3.fr/in2p3-00148882
%~ IN2P3
%~ LPTA
%~ CNRS
%~ UNIV-MONTP2
%~ UNIV-MONTPELLIER
%~ UM1-UM2