The coincidence problem in $f(R)$ gravity models
General Relativity and Quantum Cosmology
2013-02-05 v1 Cosmology and Nongalactic Astrophysics
Abstract
To explore possibilities of avoiding coincidence problem in gravity we consider models in Einstein conformal frame which are equivalent to Einstein gravity with a minimally coupled scalar field. As the conformal factor determines the coupling term and hence the interaction between matter and dark energy, the function can in principle be determined by choosing an appropriate function for the deceleration parameter only. Possible behavior of to avoid coincidence problem are investigated in two such cases.
Keywords
Cite
@article{arxiv.1212.1111,
title = {The coincidence problem in $f(R)$ gravity models},
author = {A. Sil and S. Som},
journal= {arXiv preprint arXiv:1212.1111},
year = {2013}
}
Comments
19 pages, 9 figures, Accepted for publication in General Relativity and Gravitation. arXiv admin note: substantial text overlap with arXiv:0807.1640 by other authors