Dynamical complexity of the Teleparallel gravity cosmology
Abstract
The exploration of teleparallel gravity has been done from a dynamical systems point of view in order to be tested against the cosmological evolution currently observed. So far, the proposed autonomous systems have been restrictive over a constant dynamical variable, which contains information related to the dynamics on the value. It is therefore that in this paper we consider a generalization of the dynamical system by imposing a nonconstant degree of freedom over it which allows us to rewrite a generic autonomous dynamical analysis. We describe the treatment of our nonlinear autonomous system by studying the hyperbolic critical points and discuss an interesting phenomenological feature in regards to : the possibility to obtain a best-fit value for this parameter in a cosmologically viable model, a mixed power law. This result allows us to present a generic scenario in which it is possible to fix constraints to solve the tension at late times where its linearized solutions are considered.
Cite
@article{arxiv.2101.06347,
title = {Dynamical complexity of the Teleparallel gravity cosmology},
author = {Geovanny A. Rave-Franco and Celia Escamilla-Rivera and Jackson Levi Said},
journal= {arXiv preprint arXiv:2101.06347},
year = {2021}
}
Comments
19 pages, 4 figures