6533b86ffe1ef96bd12cd200
RESEARCH PRODUCT
Matter Induced Bimetric Actions for Gravity
Elisa ManriqueMartin ReuterFrank Saueressigsubject
PhysicsHigh Energy Physics - TheoryScalar (mathematics)General Physics and AstronomyRenormalization group flowFOS: Physical sciencesGeneral Relativity and Quantum Cosmology (gr-qc)Fixed pointGeneral Relativity and Quantum CosmologyGravitationHigh Energy Physics - Theory (hep-th)BibliographyEffective actionMultipletMathematical physicsdescription
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.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2011-02-01 |