Brans-Dicke Scalar Field as a Chameleon

Details Brans-Dicke Scalar Field as a Chameleon Brans-Dicke Scalar Field as a Chameleon

2008-03-27

arxiv.org/abs/0803.3936v2

Phys.Rev.D78:043512,2008

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

10 pages, 8 figures; Contents added, References added; Revised version accepted for publication in Physical Review D

Scientific paper

10.1103/PhysRevD.78.043512

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 $\omega$.

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