Modified gravity with R-matter couplings and (non-)geodesic motion
General Relativity and Quantum Cosmology
2010-05-12 v2 Astrophysics
High Energy Physics - Theory
Abstract
We consider alternative theories of gravity with a direct coupling between matter and the Ricci scalar We study the relation between these theories and ordinary scalar-tensor gravity, or scalar-tensor theories which include non-standard couplings between the scalar and matter. We then analyze the motion of matter in such theories, its implications for the Equivalence Principle, and the recent claim that they can alleviate the dark matter problem in galaxies.
Cite
@article{arxiv.0805.1249,
title = {Modified gravity with R-matter couplings and (non-)geodesic motion},
author = {Thomas P. Sotiriou and Valerio Faraoni},
journal= {arXiv preprint arXiv:0805.1249},
year = {2010}
}
Comments
typos corrected, minor changes, version published in CQG