Shape dependence of Vainshtein screening
Scalar field theories that possess a Vainshtein mechanism are able to dynamically suppress the associated fifth forces in the presence of massive sources through derivative nonlinearities. The resulting equations of motion for the scalar are highly nonlinear, and therefore very few analytic solution...
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| Format: | Article |
| Language: | English |
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American Physical Society
2015
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| Online Access: | http://hdl.handle.net/1721.1/96472 https://orcid.org/0000-0002-7000-6569 |
| _version_ | 1826215397136793600 |
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| author | Burrage, Clare Davis, Anne-Christine Bloomfield, Jolyon |
| author2 | Massachusetts Institute of Technology. Center for Theoretical Physics |
| author_facet | Massachusetts Institute of Technology. Center for Theoretical Physics Burrage, Clare Davis, Anne-Christine Bloomfield, Jolyon |
| author_sort | Burrage, Clare |
| collection | MIT |
| description | Scalar field theories that possess a Vainshtein mechanism are able to dynamically suppress the associated fifth forces in the presence of massive sources through derivative nonlinearities. The resulting equations of motion for the scalar are highly nonlinear, and therefore very few analytic solutions are known. Here, we present a brief investigation of the structure of Vainshtein screening in symmetrical configurations, focusing in particular on the spherical, cylindrical and planar solutions that are relevant for observations of the cosmic web. We consider Vainshtein screening in both the Galileon model, where the nonlinear terms involve second derivatives of the scalar, and a k-essence theory, where the nonlinear terms involve only first derivatives of the scalar. We find that screening, and consequently the suppression of the scalar force, is most efficient around spherical sources, weaker around cylindrical sources and can be absent altogether around planar sources. |
| first_indexed | 2024-09-23T16:27:11Z |
| format | Article |
| id | mit-1721.1/96472 |
| institution | Massachusetts Institute of Technology |
| language | English |
| last_indexed | 2024-09-23T16:27:11Z |
| publishDate | 2015 |
| publisher | American Physical Society |
| record_format | dspace |
| spelling | mit-1721.1/964722022-10-02T08:00:18Z Shape dependence of Vainshtein screening Burrage, Clare Davis, Anne-Christine Bloomfield, Jolyon Massachusetts Institute of Technology. Center for Theoretical Physics Massachusetts Institute of Technology. Department of Physics Massachusetts Institute of Technology. Laboratory for Nuclear Science Bloomfield, Jolyon Scalar field theories that possess a Vainshtein mechanism are able to dynamically suppress the associated fifth forces in the presence of massive sources through derivative nonlinearities. The resulting equations of motion for the scalar are highly nonlinear, and therefore very few analytic solutions are known. Here, we present a brief investigation of the structure of Vainshtein screening in symmetrical configurations, focusing in particular on the spherical, cylindrical and planar solutions that are relevant for observations of the cosmic web. We consider Vainshtein screening in both the Galileon model, where the nonlinear terms involve second derivatives of the scalar, and a k-essence theory, where the nonlinear terms involve only first derivatives of the scalar. We find that screening, and consequently the suppression of the scalar force, is most efficient around spherical sources, weaker around cylindrical sources and can be absent altogether around planar sources. 2015-04-08T19:13:33Z 2015-04-08T19:13:33Z 2015-04 2014-09 2015-04-07T22:00:09Z Article http://purl.org/eprint/type/JournalArticle 1550-7998 1550-2368 http://hdl.handle.net/1721.1/96472 Bloomfield, Jolyon K., Clare Burrage, and Anne-Christine Davis. “Shape Dependence of Vainshtein Screening.” Physical Review D 91.8 (2015). © 2015 American Physical Society https://orcid.org/0000-0002-7000-6569 en http://dx.doi.org/10.1103/PhysRevD.91.083510 Physical Review D Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. American Physical Society application/pdf American Physical Society American Physical Society |
| spellingShingle | Burrage, Clare Davis, Anne-Christine Bloomfield, Jolyon Shape dependence of Vainshtein screening |
| title | Shape dependence of Vainshtein screening |
| title_full | Shape dependence of Vainshtein screening |
| title_fullStr | Shape dependence of Vainshtein screening |
| title_full_unstemmed | Shape dependence of Vainshtein screening |
| title_short | Shape dependence of Vainshtein screening |
| title_sort | shape dependence of vainshtein screening |
| url | http://hdl.handle.net/1721.1/96472 https://orcid.org/0000-0002-7000-6569 |
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