Majorana spin-flip transitions in a magnetic trap
Atoms confined in a magnetic trap can escape by making spin-flip Majorana transitions due to a breakdown of the adiabatic approximation. Several papers have studied this process for atoms with spin $F = 1/2$ or $F= 1$. The present paper calculates the escape rate for atoms with spin $F > 1$....
| Main Authors: | , |
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| Format: | Journal article |
| Language: | English |
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2006
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| _version_ | 1797070082785935360 |
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| author | Brink, D Sukumar, C |
| author_facet | Brink, D Sukumar, C |
| author_sort | Brink, D |
| collection | OXFORD |
| description | Atoms confined in a magnetic trap can escape by making spin-flip Majorana transitions due to a breakdown of the adiabatic approximation. Several papers have studied this process for atoms with spin $F = 1/2$ or $F= 1$. The present paper calculates the escape rate for atoms with spin $F > 1$. This problem has new features because the perturbation $\Delta T$ which allows atoms to escape satisfies a selection rule $\Delta F_z = 0, \pm 1, \pm 2$ and multi-step processes contribute in leading order. When the adiabatic approximation is satisfied the leading order terms can be summed to yield a simple expression for the escape rate. |
| first_indexed | 2024-03-06T22:33:58Z |
| format | Journal article |
| id | oxford-uuid:593a6dd0-5bd5-45c1-b9e3-a032781f4101 |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-06T22:33:58Z |
| publishDate | 2006 |
| record_format | dspace |
| spelling | oxford-uuid:593a6dd0-5bd5-45c1-b9e3-a032781f41012022-03-26T17:08:36ZMajorana spin-flip transitions in a magnetic trapJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:593a6dd0-5bd5-45c1-b9e3-a032781f4101EnglishSymplectic Elements at Oxford2006Brink, DSukumar, CAtoms confined in a magnetic trap can escape by making spin-flip Majorana transitions due to a breakdown of the adiabatic approximation. Several papers have studied this process for atoms with spin $F = 1/2$ or $F= 1$. The present paper calculates the escape rate for atoms with spin $F > 1$. This problem has new features because the perturbation $\Delta T$ which allows atoms to escape satisfies a selection rule $\Delta F_z = 0, \pm 1, \pm 2$ and multi-step processes contribute in leading order. When the adiabatic approximation is satisfied the leading order terms can be summed to yield a simple expression for the escape rate. |
| spellingShingle | Brink, D Sukumar, C Majorana spin-flip transitions in a magnetic trap |
| title | Majorana spin-flip transitions in a magnetic trap |
| title_full | Majorana spin-flip transitions in a magnetic trap |
| title_fullStr | Majorana spin-flip transitions in a magnetic trap |
| title_full_unstemmed | Majorana spin-flip transitions in a magnetic trap |
| title_short | Majorana spin-flip transitions in a magnetic trap |
| title_sort | majorana spin flip transitions in a magnetic trap |
| work_keys_str_mv | AT brinkd majoranaspinfliptransitionsinamagnetictrap AT sukumarc majoranaspinfliptransitionsinamagnetictrap |