A healthy extension of Horava gravity
High Energy Physics - Theory
2010-05-25 v1 Cosmology and Nongalactic Astrophysics
General Relativity and Quantum Cosmology
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.
Keywords
Cite
@article{arxiv.0909.3525,
title = {A healthy extension of Horava gravity},
author = {D. Blas and O. Pujolas and S. Sibiryakov},
journal= {arXiv preprint arXiv:0909.3525},
year = {2010}
}
Comments
4 pages, no figures