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arxiv: 0905.0700 · v4 · submitted 2009-05-05 · ✦ hep-th · astro-ph.CO· gr-qc

Anisotropic Cosmology and (Super)Stiff Matter in Hov{r}ava's Gravity Theory

classification ✦ hep-th astro-ph.COgr-qc
keywords supertheoryanisotropiccosmologygravitymatterstiffbriefly
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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.

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