Title

Power counting of loop diagrams in general relativity

Publication Date

1996

Journal or Book Title

PHYSICAL REVIEW D

Abstract

A class of loop diagrams in general relativity appears to have a behavior which would upset the utility of the energy expansion for quantum effects. We show through the study of specific diagrams that cancellations occur which restore the expected behavior of the energy expansion. By considering the power counting in a physical gauge we show that the apparent bad behavior is a gauge artifact, and that the quantum loops enter with a well-behaved energy expansion.

Comments

Published version is located at http://prd.aps.org/abstract/PRD/v54/i8/p4963_1

Volume

54

Pages

4963-4972

Issue

8

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