Polchinski equation, reparameterization invariance and the derivative expansion

被引：52

作者：

Comellas, J ^{[1
]}

机构：

[1] Univ Barcelona, Fac Fis, Dept Estructura & Constituents Mat, E-08028 Barcelona, Spain

来源：

NUCLEAR PHYSICS B | 1998年 / 509卷 / 03期

关键词：

renormalization group; fixed points; critical exponents;

D O I：

10.1016/S0550-3213(97)00692-5

中图分类号：

O412 [相对论、场论]; O572.2 [粒子物理学];

学科分类号：

摘要：

The connection between the anomalous dimension and some invariance properties of the fixed point actions within exact RG is explored. As an application, the Polchinski equation at next-to-leading order in the derivative expansion is studied. For the Wilson fixed point of the one-component scalar theory in three dimensions we obtain the critical exponents eta = 0.042, nu = 0.622 and omega = 0.754. (C) 1998 Elsevier Science B.V.

引用

页码：662 / 686

页数：25