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arXiv · 1301.1728

On Hořava-Lifshitz Cosmology

Samuel Lepe·Joel Saavedra
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Abstract

We discuss some aspects of the Horava-Lifshitz cosmology with different matter components considered as dominants at different stages of the cosmic evolution (each stage is represented by an equation of state pressure/density=constant). We compare cosmological solutions from this theory with their counterparts of General Relativity (Friedmann cosmology). At early times, the Horava- Lifshitz cosmology contains a curvature-dependent dominant term which is stiff matter-reminiscent and this fact motivates to discuss, in some detail, this term beside the usual stiff matter component (pressure=density) if we are thinking in the role that this fluid could have played early in the framework of the holographic cosmology. Nevertheless, we show that an early stiff matter component is of little relevance in Horava-Lifshitz cosmology.

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Samuel Lepe, Joel Saavedra. 2013-07-30. On Hořava-Lifshitz Cosmology. https://doi.org/10.1007/s10509-014-1793-2

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