Matter induced bimetric actions for gravity

Journal Article · Tue Feb 15 00:00:00 EST 2011 · Annals of Physics (New York)

DOI:https://doi.org/10.1016/j.aop.2010.11.003· OSTI ID:21579847

Manrique, Elisa ^[1]; Reuter, Martin ^[1]; Saueressig, Frank ^[1]

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1. Institute of Physics, University of Mainz, Staudingerweg 7, D-55099 Mainz (Germany)

Research Highlights: > Gravitational effective action in the bimetric truncation. > RG flow in the large N limit of matter coupled to gravity. > Asymptotically safe theory found in the large N expansion. - Abstract: The gravitational effective average action is studied in a bimetric truncation with a nontrivial background field dependence, and its renormalization group flow due to a scalar multiplet coupled to gravity is derived. Neglecting the metric contributions to the corresponding beta functions, the analysis of its fixed points reveals that, even on the new enlarged theory space which includes bimetric action functionals, the theory is asymptotically safe in the large N expansion.

• OSTI ID: 21579847
• Journal Information: Annals of Physics (New York), Vol. 326, Issue 2; Other Information: DOI: 10.1016/j.aop.2010.11.003; PII: S0003-4916(10)00192-2; Copyright (c) 2010 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; ISSN 0003-4916
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ACTION INTEGRAL
FUNCTIONALS
GRAVITATION
MATTER
METRICS
RENORMALIZATION
SCALARS
FUNCTIONS
INTEGRALS