Chameleonic Theories: A Short Review
General Relativity and Quantum Cosmology
2016-02-12 v1 High Energy Physics - Theory
Abstract
In the chameleon mechanism, a field (typically scalar) has a mass that depends on the matter density of the environment: the larger is the matter density, the larger is the mass of the chameleon. We briefly review some aspects of chameleonic theories. In particular, in a typical class of these theories, we discuss the lagrangian, the role of conformal transformations, the equation of motion and the thin-shell effect. We also discuss theories and chameleonic quantum gravity.
Keywords
Cite
@article{arxiv.1602.03869,
title = {Chameleonic Theories: A Short Review},
author = {Andrea Zanzi},
journal= {arXiv preprint arXiv:1602.03869},
year = {2016}
}
Comments
Invited contribution to the special issue "Modified Gravity Cosmology: from Inflation to Dark Energy", published in Universe. 30 pages. 2 figures. arXiv admin note: substantial text overlap with arXiv:hep-ph/0608078, arXiv:astro-ph/0611816 by other authors