Critical exponents of the Gross-Neveu model from the effective average action

Details Critical exponents of the Gross-Neveu model from the effective average action Critical exponents of the Gross-Neveu model from the effective average action

2000-07-12

arxiv.org/abs/hep-th/0007093v2

Phys.Rev.Lett. 86 (2001) 958-961

Physics

High Energy Physics

High Energy Physics - Theory

RevTeX, 4 pages, 2 figures, 1 table. Typos corrected in equations

Scientific paper

10.1103/PhysRevLett.86.958

The phase transition of the Gross-Neveu model with N fermions is investigated by means of a non-perturbative evolution equation for the scale dependence of the effective average action. The critical exponents and scaling amplitudes are calculated for various values of N in d=3. It is also explicitely verified that the Neveu-Yukawa model belongs to the same universality class as the Gross-Neveu model.

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