Mean-field quantum gravity

R. Floreanini and R. Percacci
Phys. Rev. D 46, 1566 – Published 15 August 1992
PDFExport Citation

Abstract

We describe a new approach to quantum gravity, based on a kind of mean-field approximation. The action, which we choose to be quadratic in curvature and torsion, is made polynomial by replacing the inverse vierbein by its mean value. This action is used to compute the effective action for the vierbein and hence its vacuum expectation value. Self-consistency is then enforced by requiring that this vacuum expectation value be proportional to the mean field. We have explicitly carried out this self-consistent procedure at one loop in the case of a mean field corresponding to Minkowski space, de Sitter space, and in the long-wavelength limit for a generic space. General relativity is recovered as a low-energy approximation.

  • Received 13 April 1992

DOI:https://doi.org/10.1103/PhysRevD.46.1566

©1992 American Physical Society

Authors & Affiliations

R. Floreanini

  • Istituto Nazionale di Fisica Nucleare, Sezione di Trieste, Trieste, Italy
  • Dipartimento di Fisica Teorica, Università di Trieste, Strada Costiera 11, 34014 Trieste, Italy

R. Percacci

  • International School for Advanced Studies, Trieste, Italy
  • Istituto Nazionale di Fisica Nucleare, Sezione di Trieste, Trieste, Italy

References (Subscription Required)

Click to Expand
Issue

Vol. 46, Iss. 4 — 15 August 1992

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
×