Energy conditions in f(R) gravity and Brans-Dicke theories

Details Energy conditions in f(R) gravity and Brans-Dicke theories Energy conditions in f(R) gravity and Brans-Dicke theories

2008-11-26

arxiv.org/abs/0811.4269v1

Int.J.Mod.Phys.D18:1101-1111,2009

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

9 pages, 1 figure, to appear in IJMPD

Scientific paper

10.1142/S0218271809014972

The equivalence between f(R) gravity and scalar-tensor theories is invoked to study the null, strong, weak and dominant energy conditions in Brans-Dicke theory. We consider the validity of the energy conditions in Brans-Dicke theory by invoking the energy conditions derived from a generic f(R) theory. The parameters involved are shown to be consistent with an accelerated expanding universe.

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