Emergent cosmic space in Rastall theory
General Relativity and Quantum Cosmology
2017-03-29 v3
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.
Cite
@article{arxiv.1607.04383,
title = {Emergent cosmic space in Rastall theory},
author = {Fang-Fang Yuan and Peng Huang},
journal= {arXiv preprint arXiv:1607.04383},
year = {2017}
}
Comments
8 pages, no figures, published version in CQG