Brans-Dicke Scalar Field as a Chameleon
Abstract
Description
In this paper it is shown that in Brans - Dicke theory, if one considers a non-minimal coupling between the matter and the scalar field, it 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 $ω$.
10 pages, 8 figures; Contents added, References added; Revised version accepted for publication in Physical Review D
10 pages, 8 figures; Contents added, References added; Revised version accepted for publication in Physical Review D