Synchrotron radiation in strongly coupled conformal field theories
Using gauge/gravity duality, we compute the energy density and angular distribution of the power radiated by a quark undergoing circular motion in strongly coupled N=4 supersymmetric Yang-Mills theory. We compare the strong coupling results to those at weak coupling, finding them to be very similar....
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| Format: | Article |
| Language: | en_US |
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American Physical Society
2010
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| Online Access: | http://hdl.handle.net/1721.1/57487 https://orcid.org/0000-0002-4911-3183 https://orcid.org/0000-0001-5812-8718 |
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| author | Athanasiou, Christiana Chesler, Paul Michael Liu, Hong Nickel, Marcel Dominik Johannes Rajagopal, Krishna |
| author2 | Massachusetts Institute of Technology. Department of Physics |
| author_facet | Massachusetts Institute of Technology. Department of Physics Athanasiou, Christiana Chesler, Paul Michael Liu, Hong Nickel, Marcel Dominik Johannes Rajagopal, Krishna |
| author_sort | Athanasiou, Christiana |
| collection | MIT |
| description | Using gauge/gravity duality, we compute the energy density and angular distribution of the power radiated by a quark undergoing circular motion in strongly coupled N=4 supersymmetric Yang-Mills theory. We compare the strong coupling results to those at weak coupling, finding them to be very similar. In both regimes, the angular distribution of the radiated power is in fact similar to that of synchrotron radiation produced by an electron in circular motion in classical electrodynamics: the quark emits radiation in a narrow beam along its velocity vector with a characteristic opening angle α∼1/γ. To an observer far away from the quark, the emitted radiation appears as a short periodic burst, just like the light from a lighthouse does to a ship at sea. Our strong coupling results are valid for any strongly coupled conformal field theory with a dual classical gravity description. |
| first_indexed | 2024-09-23T13:50:06Z |
| format | Article |
| id | mit-1721.1/57487 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T13:50:06Z |
| publishDate | 2010 |
| publisher | American Physical Society |
| record_format | dspace |
| spelling | mit-1721.1/574872022-09-28T16:29:14Z Synchrotron radiation in strongly coupled conformal field theories Athanasiou, Christiana Chesler, Paul Michael Liu, Hong Nickel, Marcel Dominik Johannes Rajagopal, Krishna Massachusetts Institute of Technology. Department of Physics Rajagopal, Krishna Athanasiou, Christiana Chesler, Paul Michael Liu, Hong Rajagopal, Krishna Using gauge/gravity duality, we compute the energy density and angular distribution of the power radiated by a quark undergoing circular motion in strongly coupled N=4 supersymmetric Yang-Mills theory. We compare the strong coupling results to those at weak coupling, finding them to be very similar. In both regimes, the angular distribution of the radiated power is in fact similar to that of synchrotron radiation produced by an electron in circular motion in classical electrodynamics: the quark emits radiation in a narrow beam along its velocity vector with a characteristic opening angle α∼1/γ. To an observer far away from the quark, the emitted radiation appears as a short periodic burst, just like the light from a lighthouse does to a ship at sea. Our strong coupling results are valid for any strongly coupled conformal field theory with a dual classical gravity description. United States. Dept. of Energy. Offices of Nuclear and High Energy Physics (Grant Nos. DE-FG02-94ER40818, DE-FG02-05ER41360, and DE-FG02-00ER41132) 2010-08-10T18:57:20Z 2010-08-10T18:57:20Z 2010-02 2010-06 Article http://purl.org/eprint/type/JournalArticle 1550-7998 http://hdl.handle.net/1721.1/57487 https://orcid.org/0000-0002-4911-3183 https://orcid.org/0000-0001-5812-8718 en_US http://dx.doi.org/10.1103/PhysRevD.81.126001 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. application/pdf American Physical Society APS |
| spellingShingle | Athanasiou, Christiana Chesler, Paul Michael Liu, Hong Nickel, Marcel Dominik Johannes Rajagopal, Krishna Synchrotron radiation in strongly coupled conformal field theories |
| title | Synchrotron radiation in strongly coupled conformal field theories |
| title_full | Synchrotron radiation in strongly coupled conformal field theories |
| title_fullStr | Synchrotron radiation in strongly coupled conformal field theories |
| title_full_unstemmed | Synchrotron radiation in strongly coupled conformal field theories |
| title_short | Synchrotron radiation in strongly coupled conformal field theories |
| title_sort | synchrotron radiation in strongly coupled conformal field theories |
| url | http://hdl.handle.net/1721.1/57487 https://orcid.org/0000-0002-4911-3183 https://orcid.org/0000-0001-5812-8718 |
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