Journal
PHYSICS LETTERS B
Volume 638, Issue 5-6, Pages 497-502Publisher
ELSEVIER
DOI: 10.1016/j.physletb.2006.05.073
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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. (c) 2006 Elsevier B.V. All rights reserved.
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