The price of an exact, gauge-invariant RG-flow equation

被引：38

作者：

Branchina, V ^{[1
]}

Meissner, KA

Veneziano, G

机构：

[1] CERN, Div Theory, CH-1211 Geneva 23, Switzerland

[2] Univ Strasbourg 1, IReS, Theoret Phys Grp, F-67037 Strasbourg, France

[3] CNRS, F-67037 Strasbourg, France

[4] Univ Warsaw, Inst Theoret Phys, PL-00681 Warsaw, Poland

来源：

PHYSICS LETTERS B | 2003年 / 574卷 / 3-4期

关键词：

D O I：

10.1016/j.physletb.2003.09.020

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We combine old ideas about exact renormalization-group-flow (RGF) equations with the Vilkovisky-De Witt (VDW) approach to reparametrization invariant effective actions and arrive at a new, exact, gauge-invariant RGF equation. The price to be paid for such a result is that both the action and the RGF equation depend explicitly upon the base point (in field space) needed for the VDW construction. We briefly discuss the complications originating from this fact and possible ways to overcome them. (C) 2003 Published by Elsevier B.V.

引用

页码：319 / 324

页数：6

共 18 条

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