Scalar field mass in generalized gravity
General Relativity and Quantum Cosmology
2009-09-09 v2
Abstract
The notions of mass and range of a Brans-Dicke-like scalar field in scalar-tensor and f(R) gravity are subject to an ambiguity that hides a potential trap. We spell out this ambiguity and identify a physically meaningful and practical definition for these quantities. This is relevant when giving a mass to this scalar in order to circumvent experimental limits on the PPN parameters coming from Solar System experiments.
Keywords
Cite
@article{arxiv.0906.1901,
title = {Scalar field mass in generalized gravity},
author = {Valerio Faraoni},
journal= {arXiv preprint arXiv:0906.1901},
year = {2009}
}
Comments
11 pages, no figures, to appear in Class. Quantum Grav. References added