Photoinduced Two-Body Loss of Ultracold Molecules
© 2019 American Physical Society. The lifetime of nonreactive ultracold bialkali gases was conjectured to be limited by sticky collisions amplifying three-body loss. We show that the sticking times were previously overestimated and do not support this hypothesis. We find that electronic excitation o...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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American Physical Society (APS)
2021
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| Online Access: | https://hdl.handle.net/1721.1/136417 |
| _version_ | 1826212685217267712 |
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| author | Christianen, Arthur Zwierlein, Martin W Groenenboom, Gerrit C Karman, Tijs |
| author_facet | Christianen, Arthur Zwierlein, Martin W Groenenboom, Gerrit C Karman, Tijs |
| author_sort | Christianen, Arthur |
| collection | MIT |
| description | © 2019 American Physical Society. The lifetime of nonreactive ultracold bialkali gases was conjectured to be limited by sticky collisions amplifying three-body loss. We show that the sticking times were previously overestimated and do not support this hypothesis. We find that electronic excitation of NaK+NaK collision complexes by the trapping laser leads to the experimentally observed two-body loss. We calculate the excitation rate with a quasiclassical, statistical model employing ab initio potentials and transition dipole moments. Using longer laser wavelengths or repulsive box potentials may suppress the losses. |
| first_indexed | 2024-09-23T15:33:54Z |
| format | Article |
| id | mit-1721.1/136417 |
| institution | Massachusetts Institute of Technology |
| language | English |
| last_indexed | 2024-09-23T15:33:54Z |
| publishDate | 2021 |
| publisher | American Physical Society (APS) |
| record_format | dspace |
| spelling | mit-1721.1/1364172021-10-28T03:22:11Z Photoinduced Two-Body Loss of Ultracold Molecules Christianen, Arthur Zwierlein, Martin W Groenenboom, Gerrit C Karman, Tijs © 2019 American Physical Society. The lifetime of nonreactive ultracold bialkali gases was conjectured to be limited by sticky collisions amplifying three-body loss. We show that the sticking times were previously overestimated and do not support this hypothesis. We find that electronic excitation of NaK+NaK collision complexes by the trapping laser leads to the experimentally observed two-body loss. We calculate the excitation rate with a quasiclassical, statistical model employing ab initio potentials and transition dipole moments. Using longer laser wavelengths or repulsive box potentials may suppress the losses. 2021-10-27T20:35:17Z 2021-10-27T20:35:17Z 2019 2021-06-30T13:34:17Z Article http://purl.org/eprint/type/JournalArticle https://hdl.handle.net/1721.1/136417 en 10.1103/PHYSREVLETT.123.123402 Physical Review Letters 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) APS |
| spellingShingle | Christianen, Arthur Zwierlein, Martin W Groenenboom, Gerrit C Karman, Tijs Photoinduced Two-Body Loss of Ultracold Molecules |
| title | Photoinduced Two-Body Loss of Ultracold Molecules |
| title_full | Photoinduced Two-Body Loss of Ultracold Molecules |
| title_fullStr | Photoinduced Two-Body Loss of Ultracold Molecules |
| title_full_unstemmed | Photoinduced Two-Body Loss of Ultracold Molecules |
| title_short | Photoinduced Two-Body Loss of Ultracold Molecules |
| title_sort | photoinduced two body loss of ultracold molecules |
| url | https://hdl.handle.net/1721.1/136417 |
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