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arXiv · gr-qc/0403108

Primordial and asymptotic inflation in Brans-Dicke cosmology

M. Arik·M. C. Calik
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Abstract

The basic motivation of this work is to attempt to explain the rapid primordial inflation and the observed slow late-time inflation by using the Brans-Dicke theory of gravity. We show that the ratio of these two inflation parameters is proportional to the square root of the Brans-Dicke parameter $% ω$ $(ω\gg1) $. We also calculate the Hubble parameter $% H$ and the time variation of the time dependent Newtonian gravitational constant $G$ for both regimes. The variation of the Hubble parameter predicted by Brans-Dicke cosmology is shown to be consistent with recent measurements: The value of $H$ in the late-time future is predicted as 0.86 times the present value of $H$.

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BibTeXRIS

M. Arik, M. C. Calik. 2005-12-14. Primordial and asymptotic inflation in Brans-Dicke cosmology. https://doi.org/10.1088/1475-7516%2F2005%2F01%2F013

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