Accelerating universe in $f({\cal R})$ brane gravity

Details Accelerating universe in $f({\cal R})$ brane gravity Accelerating universe in $f({\cal R})$ brane gravity

2008-01-09

arxiv.org/abs/0801.1398v1

Phys.Lett.B660:275-281,2008

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

9 pages, 1 figure, to appear in PLB

Scientific paper

10.1016/j.physletb.2007.12.057

We study a 5-dimensional $f({\cal R})$ brane gravity within the framework of scalar-tensor type theories. We show that such a model predicts, for a certain choice of $f({\cal R})$ and a spatially flat universe, an exponential potential, leading to an accelerated expanding universe driven solely by the curvature of the bulk space. This result is consistent with the observational data in the cosmological scale.

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