Asymptotic safety in higher-derivative gravity
High Energy Physics - Theory
2009-10-08 v2 General Relativity and Quantum Cosmology
Abstract
We study the non-perturbative renormalization group flow of higher-derivative gravity employing functional renormalization group techniques. The non-perturbative contributions to the -functions shift the known perturbative ultraviolet fixed point into a non-trivial fixed point with three UV-attractive and one UV-repulsive eigendirections, consistent with the asymptotic safety conjecture of gravity. The implication of this transition on the unitarity problem, typically haunting higher-derivative gravity theories, is discussed.
Keywords
Cite
@article{arxiv.0901.2984,
title = {Asymptotic safety in higher-derivative gravity},
author = {Dario Benedetti and Pedro F. Machado and Frank Saueressig},
journal= {arXiv preprint arXiv:0901.2984},
year = {2009}
}
Comments
8 pages; 1 figure; revised version