A positive energy theorem for Einstein-aether and Ho\v{r}ava gravity
General Relativity and Quantum Cosmology
2013-05-29 v1 High Energy Physics - Theory
Abstract
Energy positivity is established for a class of solutions to Einstein-aether theory and the IR limit of Ho\v{r}ava gravity within a certain range of coupling parameters. The class consists of solutions where the aether 4-vector is divergence free on a spacelike surface to which it is orthogonal (which implies that the surface is maximal). In particular, this result holds for spherically symmetric solutions at a moment of time symmetry.
Keywords
Cite
@article{arxiv.1108.1835,
title = {A positive energy theorem for Einstein-aether and Ho\v{r}ava gravity},
author = {David Garfinkle and Ted Jacobson},
journal= {arXiv preprint arXiv:1108.1835},
year = {2013}
}
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4 pages