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A healthy extension of Horava gravity
Preprint

A healthy extension of Horava 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; Pujolas O; Sibiryakov S

Publication date

September 21, 2009

DOI

10.48550/arxiv.0909.3525

Preprint server

arXiv
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