Vainshtein mechanism in general purely disformal gravity theory
General Relativity and Quantum Cosmology
2017-06-13 v2 Cosmology and Nongalactic Astrophysics
Abstract
We study a theory of gravity in which the action is a result from the general purely disformal transformation on the Einstein-Hilbert action. This theory is a sub-class of GLPV theory which is the the generalization of covariant Galileon. Nevertheless, we find that the self accelerating solution for the background universe disappears in this theory. We also find that, for this theory, the Vainshtein mechanism is absent. However, the Vainshtein mechanism is not necessary for this theory, because this theory can nearly mimic the Einstein theory of gravity at all scales inside the Huble radius without this mechanism.
Keywords
Cite
@article{arxiv.1606.04465,
title = {Vainshtein mechanism in general purely disformal gravity theory},
author = {Khamphee Karwan and David F. Mota and Saksith Jaksri},
journal= {arXiv preprint arXiv:1606.04465},
year = {2017}
}
Comments
13 pages, 2 figures, discussion and conclusions are improved