The effect of atomic response time in the theory of Doppler cooling of trapped ions
<p>We describe a simple approach to the problem of incorporating the response time of an atom or ion being Doppler-cooled into the theory of the cooling process. The system being cooled does not in general respond instantly to the changing laser frequencies it experiences in its rest frame, a...
| Main Authors: | , , , |
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| Format: | Journal article |
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Taylor and Francis
2018
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| _version_ | 1797099187602456576 |
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| author | Janacek, H Steane, A Lucas, D Stacey, D |
| author_facet | Janacek, H Steane, A Lucas, D Stacey, D |
| author_sort | Janacek, H |
| collection | OXFORD |
| description | <p>We describe a simple approach to the problem of incorporating the response time of an atom or ion being Doppler-cooled into the theory of the cooling process. The system being cooled does not in general respond instantly to the changing laser frequencies it experiences in its rest frame, and this ‘dynamic effect’ can affect significantly the temperatures attainable. It is particularly important for trapped ions when there is a slow decay out of the cooling cycle requiring the use of a repumping beam. We treat the cases of trapped ions with two and three internal states, then apply the theory to <sup>40</sup>Ca<sup>+</sup>. For this ion experimental data exist showing the ion to be cold under conditions for which heating is predicted if the dynamic effect is neglected. The present theory accounts for the observed behaviour.</p> |
| first_indexed | 2024-03-07T05:20:09Z |
| format | Journal article |
| id | oxford-uuid:de993e8e-25bc-4b51-824a-7a7422abd0cd |
| institution | University of Oxford |
| last_indexed | 2024-03-07T05:20:09Z |
| publishDate | 2018 |
| publisher | Taylor and Francis |
| record_format | dspace |
| spelling | oxford-uuid:de993e8e-25bc-4b51-824a-7a7422abd0cd2022-03-27T09:33:29ZThe effect of atomic response time in the theory of Doppler cooling of trapped ionsJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:de993e8e-25bc-4b51-824a-7a7422abd0cdSymplectic Elements at OxfordTaylor and Francis2018Janacek, HSteane, ALucas, DStacey, D <p>We describe a simple approach to the problem of incorporating the response time of an atom or ion being Doppler-cooled into the theory of the cooling process. The system being cooled does not in general respond instantly to the changing laser frequencies it experiences in its rest frame, and this ‘dynamic effect’ can affect significantly the temperatures attainable. It is particularly important for trapped ions when there is a slow decay out of the cooling cycle requiring the use of a repumping beam. We treat the cases of trapped ions with two and three internal states, then apply the theory to <sup>40</sup>Ca<sup>+</sup>. For this ion experimental data exist showing the ion to be cold under conditions for which heating is predicted if the dynamic effect is neglected. The present theory accounts for the observed behaviour.</p> |
| spellingShingle | Janacek, H Steane, A Lucas, D Stacey, D The effect of atomic response time in the theory of Doppler cooling of trapped ions |
| title | The effect of atomic response time in the theory of Doppler cooling of trapped ions |
| title_full | The effect of atomic response time in the theory of Doppler cooling of trapped ions |
| title_fullStr | The effect of atomic response time in the theory of Doppler cooling of trapped ions |
| title_full_unstemmed | The effect of atomic response time in the theory of Doppler cooling of trapped ions |
| title_short | The effect of atomic response time in the theory of Doppler cooling of trapped ions |
| title_sort | effect of atomic response time in the theory of doppler cooling of trapped ions |
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