Derivative expansion of the effective action and the renormalization group equation

被引：4

作者：

Chishtie, F. A. ^{[1
]}

Jia, Junji ^{[1
]}

McKeon, D. G. C. ^{[1
]}

机构：

[1] Univ Western Ontario, Dept Appl Math, London, ON N6A 5B7, Canada

来源：

PHYSICAL REVIEW D | 2007年 / 76卷 / 10期

关键词：

D O I：

10.1103/PhysRevD.76.105006

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The perturbative evaluation of the effective action can be expanded in powers of derivatives of the external field. We apply the renormalization group equation to the term in the effective action that is second order in the derivatives of the external field and all orders in a constant external field, considering both massless scalar phi(4)(4) model and massless scalar electrodynamics. A so-called "on shell" renormalization scheme permits one to express this "kinetic term" for the scalar field entirely in terms of the renormalization group functions appropriate for this scheme. These renormalization group functions can be related to those associated with minimal subtraction.

引用

页数：8

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