Power counting of loop diagrams in general relativity

John F. Donoghue and Tibor Torma
Phys. Rev. D 54, 4963 – Published 15 October 1996
PDFExport Citation

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.

  • Received 8 March 1996

DOI:https://doi.org/10.1103/PhysRevD.54.4963

©1996 American Physical Society

Authors & Affiliations

John F. Donoghue* and Tibor Torma

  • University of Massachusetts, Department of Physics, Amherst, Massachusetts 01003

  • *Electronic address: donoghue@phast.umass.edu
  • Electronic address: kakukk@phast.umass.edu

References (Subscription Required)

Click to Expand
Issue

Vol. 54, Iss. 8 — 15 October 1996

Reuse & Permissions
Access Options
Author publication services for translation and copyediting assistance advertisement

Authorization Required


×
×

Images

×

Sign up to receive regular email alerts from Physical Review D

Log In

Cancel
×

Search


Article Lookup

Paste a citation or DOI

Enter a citation
×