Published July 20, 2006 | Version v1
Journal article

Fixed points of quantum gravity in extra dimensions

  • 1. Institut fuer Theoretische Physik E, RWTH Aachen, D-52056 Aachen (Germany)
  • 2. School of Physics and Astronomy, University of Southampton, Highfield SO17 1BJ (United Kingdom) and Physics Department, CERN, Theory Division, CH-1211 Geneva 23 (Switzerland)

Description

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

Additional details

Identifiers

DOI
10.1016/j.physletb.2006.05.073;
arXiv
arXiv:hep-th/0602203v2;
PII
S0370-2693(06)00677-0;

Publishing Information

Journal Title
Physics Letters. Section B
Journal Volume
638
Journal Issue
5-6
Journal Page Range
p. 497-502
ISSN
0370-2693
CODEN
PYLBAJ

INIS

Country of Publication
Netherlands
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
38062618
Subject category
S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
Descriptors DEI
HILBERT SPACE; MANY-DIMENSIONAL CALCULATIONS; PERTURBATION THEORY; QUANTUM GRAVITY; RENORMALIZATION; ULTRAVIOLET RADIATION
Descriptors DEC
BANACH SPACE; ELECTROMAGNETIC RADIATION; FIELD THEORIES; MATHEMATICAL SPACE; QUANTUM FIELD THEORY; RADIATIONS; SPACE

Optional Information

Copyright
Copyright (c) 2006 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.