Bulk scalar field in brane-worlds with induced gravity inspired by the ${\cal L}(R)$ term

Details Bulk scalar field in brane-worlds with induced gravity inspired by the ${\cal L}(R)$ term Bulk scalar field in brane-worlds with induced gravity inspired by the ${\cal L}(R)$ term

2009-01-07

arxiv.org/abs/0901.0855v1

JCAP 0901:034,2009

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

9 pages, to appear in JCAP

Scientific paper

10.1088/1475-7516/2009/01/034

We obtain the effective field equations in a brane-world scenario within the framework of a DGP model where the action on the brane is an arbitrary function of the Ricci scalar, ${\cal L}(R)$, and the bulk action includes a scalar field in the matter Lagrangian. We obtain the Friedmann equations and acceleration conditions in the presence of the bulk scalar field for the $R^n$ term in four-dimensional gravity.

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