http://arxiv.org/abs/0901.2984(adsbygoogle = window.adsbygoogle || []).push({});

Asymptotic safety in higher-derivative gravity

Dario Benedetti, Pedro F. Machado, Frank Saueressig

4 pages

(Submitted on 20 Jan 2009)

"We study the non-perturbative renormalization group flow of higher-derivative gravity employing functional renormalization group techniques. The beta-functions give rise to a non-trivial ultraviolet fixed point with three UV-attractive and one UV-repulsive eigendirections, substantiating previous evidence that gravity is asymptotically safe. We argue that asymptotic safety also resolves the unitarity problem typically haunting higher-derivative gravity theories."

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# More evidence for asymptotic safety (Saueressig, Machado, Benedetti)

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