New types of <Emphasis Type="Italic">f</Emphasis>(<Emphasis Type="Italic">T</Emphasis>) gravity |
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Authors: | Rong-Jia Yang |
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Institution: | 1.College of Physical Science and Technology,Hebei University,Baoding,China |
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Abstract: | Recently f(T) theories based on modifications of teleparallel gravity, where torsion is the geometric object describing gravity instead
of curvature, have been proposed to explain the present cosmic accelerating expansion. The field equations are always second
order, remarkably simpler than f(R) theories. In analogy to the f(R) theory, we consider here three types of f(T) gravity, and find that all of them can give rise to cosmic acceleration with interesting features, respectively. |
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