An Interacting model of Dark Energy in Brans-Dicke theory
Abstract
In this paper it is shown that in non-minimally coupled Brans-Dicke theory containing a self-interacting potential, a suitable conformal transformation can automatically give rise to an interaction between the normal matter and the Brans-Dicke scalar field. Considering the scalar field in the Einstein frame as the quintessence matter, it has been shown that such a non-minimal coupling between the matter and the scalar field can give rise to a late time accelerated expansion for the universe preceded by a decelerated expansion for very high values of the Brans-Dicke parameter . We have also studied the observational constraints on the model parameters considering the Hubble and Supernova data.
Keywords
Cite
@article{arxiv.1402.4291,
title = {An Interacting model of Dark Energy in Brans-Dicke theory},
author = {Sudipta Das and Abdulla Al Mamon},
journal= {arXiv preprint arXiv:1402.4291},
year = {2015}
}
Comments
12 pages, 15 figures. Accepted for publication in Astrophysics and Space Science