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

被引：82

作者：

Rosa, L ^{[1
]}

Vitale, P ^{[1
]}

Wetterich, C ^{[1
]}

机构：

[1] Univ Heidelberg, Inst Theoret Phys, D-69120 Heidelberg, Germany

来源：

PHYSICAL REVIEW LETTERS | 2001年 / 86卷 / 06期

关键词：

D O I：

10.1103/PhysRevLett.86.958

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

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.

引用

页码：958 / 961

页数：4

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