FRW Universe in Ho\~rava Gravity

TL;DR

This paper explores the cosmological implications of Hořava gravity, a UV complete, non-relativistic gravity theory, by reformulating its modified Friedmann equations and analyzing the universe's thermodynamics.

Contribution

It reformulates Hořava gravity's modified Friedmann equations into standard form and investigates the thermodynamics of the FRW universe within this framework.

Findings

Reformulation of modified Friedmann equations in standard form

Analysis of thermodynamic properties of the FRW universe in Hořava gravity

Insights into the universe's evolution under Hořava gravity

Abstract

Recently, a field theoretic model for a UV complete theory of gravity has been proposed by Ho\~{r}ava. This theory is a non-relativistic renormalizable gravity theory which coincides with Einstein's general relativity at large distances. Subsequently L\"{u} et al have formulated the modified Friedmann equations and have presented a solution in vacuum. In the present work, we rewrite the modified FRW equations in the form of usual FRW equations in Einstein gravity and consequences has been analyzed. Also the thermodynamics of the FRW universe has been studied.