A Quintessence Scalar Field in Brans-Dicke Theory
Narayan Banerjee (Jadavpur University, Calcutta, India)and Diego Pavon, (Universidad Autonoma de Barcelona, Spain)
TL;DR
This paper demonstrates that a minimally coupled scalar field within Brans-Dicke theory can produce a non-decelerating expansion of the universe across open, flat, and closed Friedmann-Robertson-Walker models, offering insights into cosmic acceleration.
Contribution
It introduces a model where a scalar field in Brans-Dicke theory leads to accelerated expansion in various universe geometries, expanding the understanding of alternative gravity theories.
Findings
Non-decelerated expansion in all universe geometries
Scalar field effectively drives cosmic acceleration
Applicable to open, flat, and closed models
Abstract
It is shown that a minimally coupled scalara field in Brans-Dicke theory yields a non-decelerated expansion for the present universe for open, flat and closed Friedmann-Robertson-Walker models.
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