期刊
PHYSICAL REVIEW D
卷 89, 期 12, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevD.89.124036
关键词
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资金
- Fundacao para a Ciencia e Tecnologia through an Investigador FCT Research - FCT/MCTES (Portugal) [IF/00859/2012, CERN/FP/123615/2011, CERN/FP/123618/2011]
- European Social Fund (ESF)
- Greek State
- CAPES and FAPEMIG
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.
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