Emergent cosmic space in Rastall theory
arXiv:1607.04383 · doi:10.1088/1361-6382/aa61df
Abstract
Padmanabhan's emergent cosmic space proposal is employed to study the Rastall theory which involves modifying the conservation law of energy-momentum tensor. As a necessary element for this approach, we firstly propose a modified Komar energy which reflects the evolution of the energy-momentum itself in the case of a perfect fluid. After that, an expansion law is invoked to reobtain the Friedmann equation in this theory.
arXiv comment8 pages, no figures, published version in CQG
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