"Teleparallel" Dark Energy
High Energy Physics - Theory
2015-05-30 v2 Cosmology and Nongalactic Astrophysics
General Relativity and Quantum Cosmology
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.
Cite
@article{arxiv.1109.1092,
title = {"Teleparallel" Dark Energy},
author = {Chao-Qiang Geng and Chung-Chi Lee and Emmanuel N. Saridakis and Yi-Peng Wu},
journal= {arXiv preprint arXiv:1109.1092},
year = {2015}
}
Comments
5 pages, 1 figure, Version published in PLB704 (2011) 384-387