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arXiv · 1512.06996

Dynamical system analysis for nonminimal torsion-matter coupled gravity

Sante Carloni·Francisco S. N. Lobo·Giovanni Otalora·Emmanuel N. Saridakis
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Abstract

In this work, we perform a detailed dynamical analysis for the cosmological applications of a nonminimal torsion-matter coupled gravity. Two alternative formalisms are proposed, which enable one to choose between the easier approach for a given problem, and furthermore, we analyze six specific models. In general, we extract fixed points corresponding either to dark-matter dominated, scaling decelerated solutions, or to dark-energy dominated accelerated solutions. Additionally, we find that there is a small parameter region in which the model can experience the transition from the matter epoch to a dark-energy era. These features are in agreement with the observed universe evolution, and make the theory a successful candidate for the description of Nature.

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Sante Carloni, Francisco S. N. Lobo, Giovanni Otalora, Emmanuel N. Saridakis. 2015-12-28. Dynamical system analysis for nonminimal torsion-matter coupled gravity. https://doi.org/10.1103/physrevd.93.024034

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