Unifying inflation with dark energy in modified F(R) Horava-Lifshitz gravity
High Energy Physics - Theory
2011-02-09 v3 Cosmology and Nongalactic Astrophysics
General Relativity and Quantum Cosmology
Abstract
We study FRW cosmology for a non-linear modified F(R) Horava-Lifshitz gravity which has a viable convenient counterpart. A unified description of early-time inflation and late-time acceleration is possible in this theory, but the cosmological dynamic details are generically different from the ones of the convenient viable F(R) model. Remarkably, for some specific choice of parameters they do coincide. The emergence of finite-time future singularities is investigated in detail. It is shown that these singularities can be cured by adding an extra, higher-derivative term, which turns out to be qualitatively different when compared with the corresponding one of the convenient F(R) theory.
Keywords
Cite
@article{arxiv.1006.3387,
title = {Unifying inflation with dark energy in modified F(R) Horava-Lifshitz gravity},
author = {E. Elizalde and S. Nojiri and S. D. Odintsov and D. Saez-Gomez},
journal= {arXiv preprint arXiv:1006.3387},
year = {2011}
}
Comments
LaTeX 12 pages, typos are corrected