Equation of state for the 2+1 dimensional Gross-Neveu model at order 1/N

Details Equation of state for the 2+1 dimensional Gross-Neveu model at order 1/N Equation of state for the 2+1 dimensional Gross-Neveu model at order 1/N

1997-08-05

arxiv.org/abs/hep-ph/9708245v1

Phys.Rev. D57 (1998) 4995-5003

Physics

High Energy Physics

High Energy Physics - Phenomenology

19 pages, RevTeX, 10 figures.ps

Scientific paper

10.1103/PhysRevD.57.4995

We calculate the equation of state of the Gross-Neveu model in 2+1 dimensions at order 1/N, where N is the number of fermion species. We make use of a general formula valid for four-fermion theories, previously applied to the model in 1+1 dimensions. We consider both the discrete and continuous symmetry versions of the model. We show that the pion-like excitations give the dominant contribution at low temperatures. The range of validity for such pion dominance is analyzed. The complete analysis from low to high temperatures also shows that in the critical region the role of composite states is relevant, even for quite large N, and that the free-component behaviour at high T starts at about twice the mean field critical temperature.

Affiliated with

Also associated with

No associations

Rating

Equation of state for the 2+1 dimensional Gross-Neveu model at order 1/N does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Equation of state for the 2+1 dimensional Gross-Neveu model at order 1/N, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Equation of state for the 2+1 dimensional Gross-Neveu model at order 1/N will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-550586