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The cosmological behavior of Bekenstein's modified theory of gravity

F. Bourliot·P. G. Ferreira·D. F. Mota·C. Skordis
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Abstract

We study the background cosmology governed by the Tensor-Vector-Scalar theory of gravity proposed by Bekenstein. We consider a broad family of potentials that lead to modified gravity and calculate the evolution of the field variables both numerically and analytically. We find a range of possible behaviors, from scaling to the late time domination of either the additional gravitational degrees of freedom or the background fluid.

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F. Bourliot, P. G. Ferreira, D. F. Mota, C. Skordis. 2007-03-16. The cosmological behavior of Bekenstein's modified theory of gravity. https://doi.org/10.1103/physrevd.75.063508

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