On the initial singularity in Kantowski-Sachs spacetime
General Relativity and Quantum Cosmology
2021-07-14 v1
Abstract
The emergent universe scenario is a proposal for resolving the Big Bang singularity problem in the standard Friedmann-Lemaitre-Robertson-Walker cosmology. In the context of this scenario, the Universe originates from a nonsingular static state. In the present work, considering the realization of the emergent universe scenario, we address the possibility of having a nonsingular Kantowski-Sachs type static state. Considering four and five dimensional models (with and without brane), it is shown that both the existence and stability of a nonsingular state depend on the dimensions of the spacetime and the nature of the fluid supporting the geometry.
Cite
@article{arxiv.2107.02872,
title = {On the initial singularity in Kantowski-Sachs spacetime},
author = {Elham Ghorani and Yaghoub Heydarzade},
journal= {arXiv preprint arXiv:2107.02872},
year = {2021}
}
Comments
21 pages, 4 figures, published version