Anisotropic Cosmology and (Super)Stiff Matter in Ho\v{r}ava's Gravity Theory
High Energy Physics - Theory
2009-08-03 v4 Cosmology and Nongalactic Astrophysics
General Relativity and Quantum Cosmology
Abstract
We study anisotropic cosmology in Ho\v{r}ava's gravity theory and obtain Kasner type solutions, valid for any number d of spatial dimensions. The corresponding exponents satisfy two relations, one involving the marginal coupling \lambda. Also, Ho\v{r}ava's (super)renormalisable theory predicts (super)stiff matter whose equation of state is p = w \rho with w \ge 1. We discuss briefly the implications of these results for the nature of cosmological collapse.
Keywords
Cite
@article{arxiv.0905.0700,
title = {Anisotropic Cosmology and (Super)Stiff Matter in Ho\v{r}ava's Gravity Theory},
author = {S. Kalyana Rama},
journal= {arXiv preprint arXiv:0905.0700},
year = {2009}
}
Comments
Version 4: 16 pages. Results unchanged but extensive rearranging, and some addition, of materials. More references added. To be published in Physical Review D