Fixed points of quantum gravity in extra dimensions

Fisher, Peter and Litim, Daniel (2006) Fixed points of quantum gravity in extra dimensions. Physics Letters B, 638 (5-6). pp. 497-502. ISSN 0370-2693

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Abstract

We study quantum gravity in more than four dimensions with renormalisation group methods. We find a non-trivial ultraviolet fixed point in the Einstein-Hilbert action. The fixed point connects with the perturbative infrared domain through finite renormalisation group trajectories. We show that our results for fixed points and related scaling exponents are stable. If this picture persists at higher order, quantum gravity in the metric field is asymptotically safe. We discuss signatures of the gravitational fixed point in models with low scale quantum gravity and compact extra dimensions.

Item Type: Article
Schools and Departments: School of Mathematical and Physical Sciences > Physics and Astronomy
Depositing User: Daniel Litim
Date Deposited: 06 Feb 2012 18:13
Last Modified: 20 Mar 2012 09:32
URI: http://sro.sussex.ac.uk/id/eprint/15287

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