Nonminimal torsion-matter coupling extension of f(T) gravity
Abstract
We construct an extension of f(T) gravity with the inclusion of a nonminimal 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 nonminimal 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 enters 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.
Más información
Título según WOS: | Nonminimal torsion-matter coupling extension of f(T) gravity |
Título según SCOPUS: | Nonminimal torsion-matter coupling extension of f (T) gravity |
Título de la Revista: | PHYSICAL REVIEW D |
Volumen: | 89 |
Número: | 12 |
Editorial: | American Physical Society |
Fecha de publicación: | 2014 |
Idioma: | English |
DOI: |
10.1103/PhysRevD.89.124036 |
Notas: | ISI, SCOPUS |