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New types of $f(T)$ gravity

Rong-Jia Yang
(
- Hebei U.
)

Jul, 2010

6 pages

Published in:

Eur.Phys.J.C 71 (2011) 1797

e-Print:

1007.3571 [gr-qc]

DOI:

10.1140/epjc/s10052-011-1797-9

View in:

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Abstract: (arXiv)

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.

Note:

6 pages, 9 figures, some changes are made

04.50.Kd
95.36.+x
98.80.-k
gravitation: model
gravitation: teleparallel
expansion: acceleration
torsion
numerical calculations

References(55)

Figures(11)

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