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Consistent Extension of Hořava Gravity
Journal article

Consistent Extension of Hořava Gravity

Abstract

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.

Authors

Blas D; Pujolàs O; Sibiryakov S

Journal

Physical Review Letters, Vol. 104, No. 18,

Publisher

American Physical Society (APS)

Publication Date

May 7, 2010

DOI

10.1103/physrevlett.104.181302

ISSN

0031-9007

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