Cosmology in f(R) exponential gravity
General Relativity and Quantum Cosmology
2012-11-02 v1 Cosmology and Nongalactic Astrophysics
Abstract
Using an approach that treats the Ricci scalar itself as a degree of freedom, we analyze the cosmological evolution within an f(R) model that has been proposed recently (exponential gravity) and that can be viable for explaining the accelerated expansion and other features of the Universe. This approach differs from the usual scalar-tensor method and, among other things, it spares us from dealing with unnecessary discussions about frames. It also leads to a simple system of equations which is particularly suited for a numerical analysis.
Cite
@article{arxiv.1211.0015,
title = {Cosmology in f(R) exponential gravity},
author = {Luisa Jaime and Marcelo Salgado and Leonardo Patino},
journal= {arXiv preprint arXiv:1211.0015},
year = {2012}
}
Comments
8 pages (no page numbers), 5 figures (10 panels). Prepared for the Proceedings of Relativity and Gravitation: 100 years after Einstein in Prague, Prague, 25-29 June, 2012