The cosmological behavior of Bekenstein's modified theory of gravity
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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.
10 pages, 8 figures, A few typos corrected in the text and figures. Version published in PRD
10 pages, 8 figures, A few typos corrected in the text and figures. Version published in PRD