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The black hole and FRW geometries of non-relativistic gravity

Kehagias, A and Sfetsos, K (2009) The black hole and FRW geometries of non-relativistic gravity Phys.Lett.B, 678. pp. 123-126.

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Abstract

We consider the recently proposed non-relativistic Ho\v{r}ava-Lifshitz four-dimensional theory of gravity. We study a particular limit of the theory which admits flat Minkowski vacuum and we discuss thoroughly the quadratic fluctuations around it. We find that there are two propagating polarizations of the metric. We then explicitly construct a spherically symmetric, asymptotically flat, black hole solution that represents the analog of the Schwarzschild solution of GR. We show that this theory has the same Newtonian and post-Newtonian limits as GR and thus, it passes the classical tests. We also consider homogeneous and isotropic cosmological solutions and we show that although the equations are identical with GR cosmology, the couplings are constrained by the observed primordial abundance of ${}^4{\rm He}$.

Item Type: Article
Authors :
NameEmailORCID
Kehagias, AUNSPECIFIEDUNSPECIFIED
Sfetsos, Kk.sfetsos@surrey.ac.ukUNSPECIFIED
Date : 5 May 2009
Identification Number : https://doi.org/10.1016/j.physletb.2009.06.019
Uncontrolled Keywords : hep-th, hep-th
Related URLs :
Depositing User : Symplectic Elements
Date Deposited : 17 May 2017 12:26
Last Modified : 17 May 2017 12:26
URI: http://epubs.surrey.ac.uk/id/eprint/835323

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