Density Perturbations in the Brans-Dicke Theory
arXiv:gr-qc/9603015 · doi:10.1007/BF00645648
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.
26 pages, latex file