Equivalence Principle in Chameleon Models: first approach
Abstract
Most theories that predict time and/or space variation of fundamental constants also predict violations of the Weak Equivalence Principle (WEP). Khoury and Weltmann proposed the chameleon model in 2004 and claimed that this model avoids experimental bounds on WEP. We present a contrasting view based on an approximate calculation of the two body problem for the chameleon field and show that the force depends on the test body composition. Furthermore, we compare the prediction of the force on a test body with E\"otv\"os type experiments and find that the chameleon field effect cannot account for current bounds.
Keywords
Cite
@article{arxiv.1310.6051,
title = {Equivalence Principle in Chameleon Models: first approach},
author = {Lucila Kraiselburd and Susana J. Landau and Marcelo Salgado and Daniel Sudarsky},
journal= {arXiv preprint arXiv:1310.6051},
year = {2016}
}
Comments
Proceedings of the conference "Varying fundamental constants and dynamical dark energy", Sexten Center of Astrophysics,Sexten Primary School - Via Panorama 6, Sexten, Italy, July 2013