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A proposed experimental search for chameleons using asymmetric parallel plates

Burrage, Clare; Copeland, Edmund J.; Stevenson, James A.

Authors

Edmund J. Copeland

James A. Stevenson



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.

Citation

Burrage, C., Copeland, E. J., & Stevenson, J. A. (2016). A proposed experimental search for chameleons using asymmetric parallel plates. Journal of Cosmology and Astroparticle Physics, 2016(8), https://doi.org/10.1088/1475-7516/2016/08/070

Journal Article Type Article
Acceptance Date Aug 6, 2016
Publication Date Aug 31, 2016
Deposit Date Mar 29, 2017
Publicly Available Date Mar 29, 2024
Journal Journal of Cosmology and Astroparticle Physics
Electronic ISSN 1475-7516
Publisher IOP Publishing
Peer Reviewed Peer Reviewed
Volume 2016
Issue 8
DOI https://doi.org/10.1088/1475-7516/2016/08/070
Keywords Dark energy experiments, Dark energy theory
Public URL https://nottingham-repository.worktribe.com/output/803603
Publisher URL http://iopscience.iop.org/article/10.1088/1475-7516/2016/08/070/meta
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

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