The aether-modified gravity and the Godel metric
General Relativity and Quantum Cosmology
2013-03-27 v4 High Energy Physics - Theory
Abstract
We formulate the nonminimal aether-modified gravity whose action represents itself as a sum of the usual Einstein-Hilbert action and the CPT-even Lorentz-breaking aether-like gravity term proposed by Carroll. For this theory, we show that the G\"{o}del metric solves the modified Einstein equations under a corresponding modification of the matter, while, for the small Lorentz-breaking corrections, the matter turns out to be usual. On the other side, if the matter is suggested to be the same as in the usual general relativity, the G\"{o}del metric is modified by additive aether terms.
Keywords
Cite
@article{arxiv.1109.5654,
title = {The aether-modified gravity and the Godel metric},
author = {C. Furtado and J. R. Nascimento and A. Yu. Petrov and A. F. Santos},
journal= {arXiv preprint arXiv:1109.5654},
year = {2013}
}
Comments
12 pages, revised version