Fixed points of quantum gravity in higher dimensions

Details Fixed points of quantum gravity in higher dimensions Fixed points of quantum gravity in higher dimensions

2006-06-15

arxiv.org/abs/hep-th/0606135v1

Physics

High Energy Physics

High Energy Physics - Theory

Talk presented at Einstein Century Meeting, Paris, 15-22 July 2005

Scientific paper

10.1063/1.2399593

We study quantum gravity in more than four dimensions by means of an exact functional flow. A non-trivial ultraviolet fixed point is found in the Einstein-Hilbert theory. It is shown that our results for the fixed point and universal scaling exponents are stable. If the fixed point persists in extended truncations, quantum gravity in the metric field is asymptotically safe. We indicate physical consequences of this scenario in phenomenological models with low-scale quantum gravity and large extra dimensions.

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