Geodesic Congruences in the Palatini f(R) Theory
General Relativity and Quantum Cosmology
2008-12-18 v1
Abstract
We shall investigate the properties of a congruence of geodesics in the framework of Palatini f(R) theories. We shall evaluate the modified geodesic deviation equation and the Raychaudhuri's equation and show that f(R) Palatini theories do not necessarily lead to attractive forces. Also we shall study energy condition for f(R) Palatini gravity via a perturbative analysis of the Raychaudhuri's equation.
Keywords
Cite
@article{arxiv.0811.2832,
title = {Geodesic Congruences in the Palatini f(R) Theory},
author = {Fatimah Shojai and Ali Shojai},
journal= {arXiv preprint arXiv:0811.2832},
year = {2008}
}