On Hořava-Lifshitz Cosmology

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.

11 pages, major revision

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Cited by in corpus (5)

• A phase space description of the FLRW quantum cosmology in Ho$\check{\mathrm{r}}$ava-Lifshitz type gravity
• Gauss-Bonnet dark energy on Hořava-Lifshitz cosmology
• Holographic energy density on Hořava-Lifshitz cosmology
• Global dynamics of the Horava-Lifshitz cosmology in the presence of non-zero cosmological constant in a flat space
• Global dynamics of the Horava-Lifshitz cosmological model in a non-flat universe with non-zero cosmological constant