https://doi.org/10.1140/epjc/s10052-021-09355-7
Regular Article - Theoretical Physics
On the initial singularity in Kantowski–Sachs spacetime
1
, Gorgan, Iran
2
Department of Mathematics, Faculty of Sciences, Bilkent University, 06800, Ankara, Turkey
Received:
23
February
2021
Accepted:
19
June
2021
Published online:
29
June
2021
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.
© The Author(s) 2021
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