Critical exponents of the Gross-Neveu model from the effective average action.
نویسندگان
چکیده
The phase transition of the Gross-Neveu model with N fermions is investigated by means of a nonperturbative 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 explicitly verified that the Neveu-Yukawa model belongs to the same universality class as the Gross-Neveu model.
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عنوان ژورنال:
- Physical review letters
دوره 86 6 شماره
صفحات -
تاریخ انتشار 2001