Non-minimal coupling inspires the Dirac cosmological model
General Relativity and Quantum Cosmology
2021-07-27 v1
Abstract
In the framework of the generalized Rastall theory (GRT), we study the ability of a non-minimal coupling between geometry and matter fields in order to provide a setting which allows for a variable G during the cosmic evolution. In this regard, the compatibility of this theory with Dirac hypothesis on the variations of G is investigated, and additionally, the possibility of obtaining the current accelerated universe is also addressed. In summary, our study indicates that, in GRT, having in hand the G profile, one may find the corresponding non-minimal coupling between the energy source and geometry and vise versa, in a compatible way with the current accelerated universe.
Cite
@article{arxiv.2107.12141,
title = {Non-minimal coupling inspires the Dirac cosmological model},
author = {Hooman Moradpour and Hamid Shabani and Amir Hadi Ziaie and Umesh Kumar Sharma},
journal= {arXiv preprint arXiv:2107.12141},
year = {2021}
}
Comments
8 pages, 3 figures