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research article
Consistent Extension of Horava Gravity
We propose a natural extension of Horava's model for quantum gravity, which is free from the notorious pathologies of the original proposal. The new model endows the scalar graviton mode with a regular quadratic action and remains power-counting renormalizable. At low energies, it reduces to a Lorentz-violating scalar-tensor gravity theory. The deviations with respect to general relativity can be made weak by an appropriate choice of parameters.
Type
research article
Web of Science ID
WOS:000277417500010
Authors
Publication date
2010
Published in
Volume
104
Issue
18
Article Number
181302
Peer reviewed
REVIEWED
Written at
EPFL
EPFL units
Available on Infoscience
December 16, 2011
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