Abstract
We investigate the growth factor for subhorizon modes during late times in gravity, where is the torsion scalar and is the trace of the stress-energy tensor. This is achieved by obtaining the modified Mészáros equation, which describes the evolution of the perturbations of the matter energy density, and obtaining numerical results. Such results are obtained by solving the modified continuity equation and analyzing the behavior of the solutions of the latter using various constraints on the integration constants. Furthermore, the role of the anisotropic term is investigated.
5 More- Received 28 July 2016
DOI:https://doi.org/10.1103/PhysRevD.94.124004
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