4.7 Article

Anisotropic cosmology and (super)stiff matter in Horava's gravity theory

Journal

PHYSICAL REVIEW D
Volume 79, Issue 12, Pages -

Publisher

AMER PHYSICAL SOC
DOI: 10.1103/PhysRevD.79.124031

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We study anisotropic cosmology in Horava'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, Horava's (super)renormalizable theory predicts ( super) stiff matter whose equation of state is p = w rho, with w >= 1. We discuss briefly the implications of these results for the nature of cosmological collapse.

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