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Density Perturbations in the Brans-Dicke Theory

J. P. Baptista·J. C. Fabris·S. V. B. Goncalves
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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.

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J. P. Baptista, J. C. Fabris, S. V. B. Goncalves. 1996-03-06. Density Perturbations in the Brans-Dicke Theory. https://doi.org/10.1007/bf00645648

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