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Teleparallel dark energy
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DOI：10.1016/j.physletb.2011.09.082.png)
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摘要
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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. (C) 2011 Elsevier B.V. All rights reserved.
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4.5
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3.2W
被引数:
7.3W
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