A proposed experimental search for chameleons using asymmetric parallel plates

Burrage, Clare and Copeland, Edmund J. and Stevenson, James A. (2016) A proposed experimental search for chameleons using asymmetric parallel plates. Journal of Cosmology and Astroparticle Physics, 2016 (08). 070-070. ISSN 1475-7516

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Abstract

Light scalar fields coupled to matter are a common consequence of theories of dark energy and attempts to solve the cosmological constant problem. The chameleon screening mechanism is commonly invoked in order to suppress the fifth forces mediated by these scalars, sufficiently to avoid current experimental constraints, without fine tuning. The force is suppressed dynamically by allowing the mass of the scalar to vary with the local density. Recently it has been shown that near future cold atoms experiments using atom-interferometry have the ability to access a large proportion of the chameleon parameter space. In this work we demonstrate how experiments utilising asymmetric parallel plates can push deeper into the remaining parameter space available to the chameleon.

Item Type: Article
Additional Information: This is an author-created, un-copyedited version of an article accepted for publication in Journal of Cosmology and Astroparticle Physics. The publisher is not responsible for any errors or omissions in this version of the manuscript or any version derived from it. The Version of Record is available online at http://iopscience.iop.org/article/10.1088/1475-7516/2016/08/070/meta
Keywords: Dark energy experiments, Dark energy theory
Schools/Departments: University of Nottingham, UK > Faculty of Science > School of Physics and Astronomy
Identification Number: 10.1088/1475-7516/2016/08/070
Depositing User: Burrage, Clare
Date Deposited: 29 Mar 2017 08:21
Last Modified: 15 Oct 2017 05:36
URI: http://eprints.nottingham.ac.uk/id/eprint/41563

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