Cosmic Acceleration with Torsion and Non-metricity in Friedmann-like Universes
General Relativity and Quantum Cosmology
2022-03-08 v2
Abstract
Starting from the generalized Raychaudhuri equation with torsion and non-metricity, and considering an FLRW spacetime we derive the most general form of acceleration equation in the presence of torsion and non-metricity. That is we derive the cosmic acceleration equation when the nonRiemannian degrees of freedom are also taken into account. We then discuss some conditions under which torsion and non-metricity accelerate/decelerate the expansion rate of the Universe.
Keywords
Cite
@article{arxiv.2007.12537,
title = {Cosmic Acceleration with Torsion and Non-metricity in Friedmann-like Universes},
author = {Damianos Iosifidis},
journal= {arXiv preprint arXiv:2007.12537},
year = {2022}
}
Comments
6 pages, no figures