2008•Physical review. D. Particles, fields, gravitation, and cosmology/Physical review. D. Particles and fieldsOpen access

Brans-Dicke scalar field as a chameleon

Sudipta Das, Narayan Banerjee

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Abstract

In this paper it is shown that in Brans-Dicke theory, if one considers a nonminimal 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 $\ensuremath{\omega}$.

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OpenAlex reports 126 citations for this work. Citation counts describe recorded attention and do not establish research quality.

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Key concepts: Brans–Dicke theory, Scalar field, Physics, Omega, Scalar (mathematics), Field (mathematics), Theoretical physics, Coupling (piping)