Inflationary phase in Generalized Brans-Dicke theory
General Relativity and Quantum Cosmology
2010-12-14 v2
Abstract
We find a solution for exponential inflation in a Brans-Dicke generalized model, where the coupling "constant " is variable. While in General Relativity the equation of state is p is equal to minus rho, here we find p proportional to rho, where the proportionality constant is smaller than -2/3. The negativity of cosmic pressure implies acceleration of the expansion, even with lambda < 0 >.
Keywords
Cite
@article{arxiv.gr-qc/0111098,
title = {Inflationary phase in Generalized Brans-Dicke theory},
author = {Marcelo S. Berman and Luis A. Trevisan},
journal= {arXiv preprint arXiv:gr-qc/0111098},
year = {2010}
}
Comments
International Journal of Theoretical Physics, to be published