Abstract
We study the background cosmology governed by the tensor-vector-scalar theory of gravity proposed by Bekenstein. We consider a broad family of functions 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.
1 More- Received 9 November 2006
DOI:https://doi.org/10.1103/PhysRevD.75.063508
©2007 American Physical Society