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Centro de Astrofísica da Universidade do Porto

Dynamical system analysis for a nonminimal torsion-matter coupled gravity

S. Carloni, F. S. N. Lobo, G. Otalora, E. N. Saridakis

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 the dark-energy era. These features are in agreement with the observed evolution of the Universe, and make the theory a successful candidate for the description of nature.

Keywords
2016PhRvD..93b4034C

Physical Review D
Volume 93
January 2016

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