Einstein's Other Gravity and the Acceleration of the Universe - INSPIRE

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Einstein's Other Gravity and the Acceleration of the Universe

Eric V. Linder
(
- UC, Berkeley and
- Ewha Women's U., Seoul
)

May, 2010

7 pages

Published in:

Phys.Rev.D 81 (2010) 127301,
Phys.Rev.D 82 (2010) 109902 (erratum)

e-Print:

1005.3039 [astro-ph.CO]

DOI:

View in:

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Abstract: (arXiv)

Spacetime curvature plays the primary role in general relativity but Einstein later considered a theory where torsion was the central quantity. Just as the Einstein-Hilbert action in the Ricci curvature scalar R can be generalized to f(R) gravity, we consider extensions of teleparallel, or torsion scalar T, gravity to f(T) theories. The field equations are naturally second order, avoiding pathologies, and can give rise to cosmic acceleration with unique features.

04.50.Kd
98.80.-k
99.10.Cd
expansion: acceleration
action: Einstein-Hilbert
curvature: scalar
gravitation: f(R)
curvature: Ricci
torsion
general relativity

References(14)

Figures(1)

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