Bounce and cyclic cosmology in extended nonlinear massive gravity
Cosmology and Nongalactic Astrophysics
2012-11-05 v3 General Relativity and Quantum Cosmology
High Energy Physics - Theory
Abstract
We investigate non-singular bounce and cyclic cosmological evolutions in a universe governed by the extended nonlinear massive gravity, in which the graviton mass is promoted to a scalar-field potential. The extra freedom of the theory can lead to certain energy conditions violations and drive cyclicity with two different mechanisms: either with a suitably chosen scalar-field potential under a given Stuckelberg-scalar function, or with a suitably chosen Stuckelberg-scalar function under a given scalar-field potential. Our analysis shows that extended nonlinear massive gravity can alter significantly the evolution of the universe at both early and late times.
Cite
@article{arxiv.1207.3786,
title = {Bounce and cyclic cosmology in extended nonlinear massive gravity},
author = {Yi-Fu Cai and Caixia Gao and Emmanuel N. Saridakis},
journal= {arXiv preprint arXiv:1207.3786},
year = {2012}
}
Comments
20 pages, 5 figures, version published at JCAP