Teleparallel dark energy

By Chao-Qiang Geng, Chung-Chi Lee, Emmanuel N. Saridakis, Yi-Peng Wu. 2011

305 citations recorded by the source corpus.

Abstract Using the “teleparallel” equivalent of General Relativity as the gravitational sector, which is based on torsion instead of curvature, we add a canonical scalar field, allowing for a nonminimal coupling with gravity. Although the minimal case is completely equivalent to standard quintessence, the nonminimal scenario has a richer structure, exhibiting quintessence-like or phantom-like behavior, or experiencing the phantom-divide crossing. The richer structure is manifested in the absence of a conformal transformation to an equivalent minimally-coupled model.

Subfields: Astronomy and Astrophysics, Nuclear and High Energy Physics

View Paper: https://www.semanticscholar.org/paper/419f75c8c2db7c5a105b7ad3b8087ddec14418fa

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Citations in the corpus

Teleparallel theories of gravity: illuminating a fully invariant approach (2018, background): “[102] under the name teleparallel dark energy considers the torsion scalar (138) non-minimally coupled to the scalar field with kinetic and potential terms for the scalar field:”
Cosmological perturbations in modified teleparallel gravity models (2018, background): “m in the present day Universe [10, 11] have led to one of the simplest modiﬁed teleparallel models, the f(T). Since then, many variations of this model have been proposed to the same aims, with (e.g. [12, 13, 14]) and without (e.g. [15, 16, 17]) additional scalar ﬁelds in the action (see [7] and Sec”
Observational constraints on teleparallel dark energy (2011, methodology): “In the present work we have used observational data to impose constraints on the parameters of the teleparallel dark energy scenario [38], which is based on the teleparallel equivalent of General Relativity (TEGR), that is on its torsion instead of curvature formulation [39, 40].”
Nonmetricity formulation of general relativity and its scalar-tensor extension (2018, background): “ee of scalar-curvature [17–19] and scalar-torsion [20, 21] theories, where the scalar field is coupled to the curvature and torsion scalar, respectively.”
Solar system constraints on f(T) gravity (2012, unknown): “(2011a), Ferraro & Fiorini (2011a), Wei et al. (2011b), Capozziello et al. (2011), Wu & Yu (2011b), Bamba & Geng (2011), Geng et al. (2011), Wei (2012), Geng et al (2012), Wu & Geng (2011), Bohmer et al. (2012), Karami & Abdolmaleki (2011), Atazadeh& Darabi (2012), Farajollahi et al. (2012), Yang…”