Dynamical system analysis for a nonminimal torsion-matter coupled gravity

• Autor(a) principal: Carloni, Sante
• Data de Publicação: 2016
• Outros Autores: Lobo, Francisco S. N., Otalora, Giovanni [UNESP], Saridakis, Emmanuel N.
• Tipo de documento: Artigo
• Idioma: eng
• Título da fonte: Repositório Institucional da UNESP
• Texto Completo: http://dx.doi.org/10.1103/PhysRevD.93.024034; http://hdl.handle.net/11449/172721

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.