Comments on the gauge fixed BRST cohomology and the quantum Noether method

被引：0
|
作者：
Barnich, G
Hurth, T
Skenderis, K
机构：
[1] Free Univ Brussels, B-1050 Brussels, Belgium
[2] CERN, Div Theory, CH-1211 Geneva 23, Switzerland
[3] Stanford Univ, SLAC, Stanford, CA 94309 USA
[4] Univ Amsterdam, Inst Theoret Phys, NL-1018 XE Amsterdam, Netherlands
来源：
PHYSICS LETTERS B | 2004年 / 588卷 / 1-2期
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D O I：
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中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We discuss in detail the relation between the gauge fixed and gauge invariant BRST cohomology. We showed previously that in certain gauges some cohomology classes of the gauge-fixed BRST differential do not correspond to gauge invariant observables. We now show that in addition "accidental" conserved currents may appear. These correspond one-to-one to observables that become trivial in this gauge. We explicitly show how the gauge-fixed BRST cohomology appears in the context of the quantum Noether method. (C) 2004 Elsevier B.V. All rights reserved.
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页码：111 / 118
页数：8
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