Nonminimal torsion-matter coupling extension of f(T) gravity

By Tiberiu Harko, Francisco S. N. Lobo, G. Otalora, Emmanuel N. Saridakis. 2014

145 citations recorded by the source corpus.

We construct an extension of f(T) gravity with the inclusion of a non-minimal torsion-matter coupling in the action. The resulting theory is a novel gravitational modification, since it is different from both f(T) gravity, as well as from the non-minimal curvature-matter-coupled theory. The cosmological application of this new theory proves to be very interesting. In particular, we obtain an effective dark energy sector whose equation-of-state parameter can be quintessence or phantom-like, or exhibit the phantom-divide crossing, while for a large range of the model parameters the Universe results in a de Sitter, dark-energy-dominated, accelerating phase. Additionally, we can obtain early-time inflationary solutions too, and thus provide a unified description of the cosmological history.

Subfields: Astronomy and Astrophysics, Nuclear and High Energy Physics, Oceanography

View Paper: https://www.semanticscholar.org/paper/f7ed728e1d606520726d0abf80b5d38303e1ac6d

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Citations in the corpus

f(T,𝒯) gravity and cosmology (2014, background): “The resulting f(T, T ) theory is different from f(T ) gravity, from the curvature-based f(R, T ) gravity [83], as well as from the recently constructed nonminimally torsion-matter coupled theory where T is coupled to the matter Lagrangian Lm instead of T [99].”
Teleparallel theories of gravity: illuminating a fully invariant approach (2018, unknown): “[62] T.”
Generalized Curvature-Matter Couplings in Modified Gravity (2014, background): “o an arbitrary function f(T) [36–38]. Now, in the context of TEGR models, one may also construct an extension of f(T) gravity with the inclusion of a non-minimal torsion-matter coupling in the action [39]. The resulting theory is a novel gravitational modiﬁcation, since it is different from both f(T”
f(T) teleparallel gravity and cosmology (2015, methodology): “Let us first consider the case where [607]”