Gauge Independent Trace Anomaly for Gravitons

Details Gauge Independent Trace Anomaly for Gravitons Gauge Independent Trace Anomaly for Gravitons

1995-03-27

arxiv.org/abs/hep-th/9503187v2

Phys.Rev.D52:4600-4608,1995

Physics

High Energy Physics

High Energy Physics - Theory

19 pages, additional references and title change

Scientific paper

10.1103/PhysRevD.52.4600

We show that the trace anomaly for gravitons calculated using the usual effective action formalism depends on the choice of gauge when the background spacetime is not a solution of the classical equation of motion, that is, when off-shell. We then use the gauge independent Vilkovisky-DeWitt effective action to restore gauge independence to the off-shell case. Additionally we explicitly evaluate trace anomalies for some N-sphere background spacetimes.

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