A proposed experimental search for chameleons using asymmetric parallel plates
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 expe...
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| Format: | Article |
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IOP Publishing
2016
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| Online Access: | https://eprints.nottingham.ac.uk/41563/ |
| _version_ | 1848796303699476480 |
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| author | Burrage, Clare Copeland, Edmund J. Stevenson, James A. |
| author_facet | Burrage, Clare Copeland, Edmund J. Stevenson, James A. |
| author_sort | Burrage, Clare |
| building | Nottingham Research Data Repository |
| collection | Online Access |
| description | 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. |
| first_indexed | 2025-11-14T19:45:51Z |
| format | Article |
| id | nottingham-41563 |
| institution | University of Nottingham Malaysia Campus |
| institution_category | Local University |
| last_indexed | 2025-11-14T19:45:51Z |
| publishDate | 2016 |
| publisher | IOP Publishing |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | nottingham-415632020-05-04T18:04:59Z https://eprints.nottingham.ac.uk/41563/ A proposed experimental search for chameleons using asymmetric parallel plates Burrage, Clare Copeland, Edmund J. Stevenson, James A. 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. IOP Publishing 2016-08-31 Article PeerReviewed Burrage, Clare, 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 Dark energy experiments Dark energy theory http://iopscience.iop.org/article/10.1088/1475-7516/2016/08/070/meta doi:10.1088/1475-7516/2016/08/070 doi:10.1088/1475-7516/2016/08/070 |
| spellingShingle | Dark energy experiments Dark energy theory Burrage, Clare Copeland, Edmund J. Stevenson, James A. A proposed experimental search for chameleons using asymmetric parallel plates |
| title | A proposed experimental search for chameleons using asymmetric parallel plates |
| title_full | A proposed experimental search for chameleons using asymmetric parallel plates |
| title_fullStr | A proposed experimental search for chameleons using asymmetric parallel plates |
| title_full_unstemmed | A proposed experimental search for chameleons using asymmetric parallel plates |
| title_short | A proposed experimental search for chameleons using asymmetric parallel plates |
| title_sort | proposed experimental search for chameleons using asymmetric parallel plates |
| topic | Dark energy experiments Dark energy theory |
| url | https://eprints.nottingham.ac.uk/41563/ https://eprints.nottingham.ac.uk/41563/ https://eprints.nottingham.ac.uk/41563/ |