Late time acceleration in Brans Dicke Cosmology

Details Late time acceleration in Brans Dicke Cosmology Late time acceleration in Brans Dicke Cosmology

2000-10-25

arxiv.org/abs/gr-qc/0010092v2

Phys.Rev. D63 (2001) 124006

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

8 pages, RevTex style, 3 postscript figures, some more Comments made about the feature of the model, references included, typo

Scientific paper

10.1103/PhysRevD.63.124006

In this work we have investigated the possibility of having a late time accelerated phase of the universe, suggested by recent supernova observation, in the context of Brans Dicke (BD) theory with a symmetry breaking potential and a matter field. We find that a perfect fluid matter field (pressureless and with pressure) cannot support this acceleration but a fluid with dissipative pressure can drive this late time acceleration. We have also calculated some cosmological parameters in our model to match with observations.

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