Beyond the Chameleon Mechanism
High Energy Physics - Phenomenology
2008-05-23 v1 Astrophysics
General Relativity and Quantum Cosmology
High Energy Physics - Theory
Abstract
As a result of non-linear self-interactions, in chameleon theories where the field couples to matter much more strongly than gravity does, the fifth force between two bodies with thin-shell is independent of their coupling to the field. As a consequence the bounds on the coupling coming from terrestrial tests of gravity, measurements of the Casimir force and those constraints imposed by the physics of compact objects, big-bang nucleosynthesis and measurements of the cosmic microwave background anisotropies can be exponentially relaxed.
Cite
@article{arxiv.0805.3430,
title = {Beyond the Chameleon Mechanism},
author = {David F. Mota and Douglas J. Shaw},
journal= {arXiv preprint arXiv:0805.3430},
year = {2008}
}
Comments
To appear in the proceedings of 43rd Rencontres de Moriond on Cosmology, La Thuile, Italy, March 15 - 22, 2008