Five dimensional Gravity and Big Bang Singularity
General Relativity and Quantum Cosmology
2018-08-29 v2
Abstract
A 5-dimensional gravity theory, motivated by the brane world picture, with factorisable metric and with Kaluza scalar , is shown to give rise to a positive contribution to the Raychaudhuri equation. This inhibits the focusing of geodesics and possibly cause non-focusing of the geodesics. This feature is translated into the situation in which the universe has an infinite age and hence no beginning avoiding the big bang singularity.
Cite
@article{arxiv.1507.01689,
title = {Five dimensional Gravity and Big Bang Singularity},
author = {R. Parthasarathy},
journal= {arXiv preprint arXiv:1507.01689},
year = {2018}
}
Comments
A more complete version appeared in arXiv:1702.05231