Kantowski-Sachs cosmology in scalar-torsion theory
General Relativity and Quantum Cosmology
2023-03-29 v1 High Energy Physics - Theory
Abstract
In the context of scalar-torsion theory we investigate the evolution of the cosmological anisotropies for a Kantowski-Sachs background geometry. We study the phase-space of the gravitational field equations by determining the admitted stationary points and study their stability properties. For the potential function of the non-minimally coupled scalar field we assume the exponential and the power-law functions. Finally, we make use of Poincare variables in order to investigate the existence of stationary points at the infinity regime of the dynamics.
Keywords
Cite
@article{arxiv.2302.09608,
title = {Kantowski-Sachs cosmology in scalar-torsion theory},
author = {Andronikos Paliathanasis},
journal= {arXiv preprint arXiv:2302.09608},
year = {2023}
}
Comments
25 pages; 6 figures; to appear in Eur. Phys. J. C