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Cosmic Acceleration and Brans-Dicke Theory

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arxiv 1303.2109 v1 pith:4AULVLAR submitted 2013-03-08 gr-qc

Cosmic Acceleration and Brans-Dicke Theory

M. Sharif , Saira Waheed This is my paper
classification gr-qc
keywords brans-dickeparameteruniverseacceleratedaccelerationcosmicexpansionfluid
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This paper is devoted to study the accelerated expansion of the universe by exploring the Brans-Dicke parameter in different eras. For this purpose, we take FRW universe model with viscous fluid (without potential) and Bianchi type I universe model with barotropic fluid (with and without potential). We evaluate deceleration parameter as well as Brans-Dicke parameter to explore cosmic acceleration. It is concluded that accelerated expansion of the universe can also be achieved for higher values of the Brans-Dicke parameter in some cases.

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