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Consistent closure of renormalization group flow equations in quantum gravity

Alessandro Codello, Giulio D’Odorico, and Carlo Pagani
Phys. Rev. D 89, 081701(R) – Published 21 April 2014

Abstract

We construct a consistent closure for the beta functions of the cosmological and Newton’s constants by evaluating the influence that the anomalous dimensions of the fluctuating metric and ghost fields have on their renormalization group flow. In this generalized framework we confirm the presence of a UV attractive non-Gaussian fixed point, which we find characterized by real critical exponents. Our closure method is general and can be applied systematically to more general truncations of the gravitational effective average action.

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  • Received 24 February 2014

DOI:https://doi.org/10.1103/PhysRevD.89.081701

© 2014 American Physical Society

Authors & Affiliations

Alessandro Codello1, Giulio D’Odorico2, and Carlo Pagani1,3

  • 1SISSA, via Bonomea 265, I-34136 Trieste, Italy
  • 2IMAPP, Radboud University, Heyendaalseweg 135, 6525 AJ, Nijmegen, The Netherlands
  • 3INFN, I-34136 Sezione di Trieste, Italy

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Issue

Vol. 89, Iss. 8 — 15 April 2014

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