Asymptotic safety in higher-derivative gravity
Jan, 2009
4 pages
Published in:
- Mod.Phys.Lett.A 24 (2009) 2233-2241
e-Print:
- 0901.2984 [hep-th]
Report number:
- PI-QC-115,
- ITP-UU-09-03,
- SPIN-09-03,
- IPHT-T09-012
View in:
Citations per year
Abstract: (arXiv)
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.Note:
- 4 pages
- 04.60.-m
- 11.10.Hi
- Quantum gravity
- asymptotic safety
- renormalization
- derivative: high
- renormalization group: nonperturbative
- gravitation: asymptotic safety
- beta function
- fixed point: ultraviolet
References(35)
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