Effective gravitational equations on brane world with induced gravity described by $f(R)$ term

Details Effective gravitational equations on brane world with induced gravity described by $f(R)$ term Effective gravitational equations on brane world with induced gravity described by $f(R)$ term

2008-03-12

arxiv.org/abs/0803.1823v3

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

8 pages, disscusion improved, version accepted by JCAP

Scientific paper

10.1088/1475-7516/2009/04/013

In this article we study a generalization of DGP scenarios, where the induced gravity is given by a $f(R)$ term. We obtain the effective gravitational equations and the effective FLRW cosmological equation on the brane of this model. We show that this generalization has also two regime, a 5D regime a low energies that has a self-accelerated branch of interest for cosmology and a 4D regime at high energies that it is described a modified gravitational theory.

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