Density Perturbations in the Brans-Dicke Theory
General Relativity and Quantum Cosmology
2009-10-28 v1
Abstract
We analyse the fate of density perturbation in the Brans-Dicke Theory, giving a general classification of the solutions of the perturbed equations when the scale factor of the background evolves as a power law. We study with details the cases of vacuum, inflation, radiation and incoherent matter. We find, for the a negative Brans-Dicke parameter, a significant amplification of perturbations.
Cite
@article{arxiv.gr-qc/9603015,
title = {Density Perturbations in the Brans-Dicke Theory},
author = {J. P. Baptista and J. C. Fabris and S. V. B. Goncalves},
journal= {arXiv preprint arXiv:gr-qc/9603015},
year = {2009}
}
Comments
26 pages, latex file