Fixed points of quantum gravity in higher dimensions

2006/01/01 by Peter Fischer, P. Fischer, Daniel F. Litim +1 · 5 citations
Physics and Astronomy · #Black Holes and Theoretical Physics #Noncommutative and Quantum Gravity Theories #Quantum Electrodynamics and Casimir Effect #hep-th

paper · pdf · doi:10.1063/1.2399593

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

openalex publication_date 2006/01/01 · arxiv created 2006/06/15 · arxiv updated 2009/12/01 · openalex created_date 2019/06/27 · openalex updated_date 2026/07/31

Abstract

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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