Bose-Einstein condensation in a stiff TOP trap with adjustable geometry
We report on the realization of a stiff magnetic trap with independently adjustable trap frequencies, ω-z$/ and ω-r$/ in the axial and radial directions, respectively. This has been achieved by applying an axial modulation to a time-averaged orbiting potential (TOP) trap. The frequency ratio of the...
| Main Authors: | , , , , , |
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| Format: | Journal article |
| Language: | English |
| Published: |
IOP
2000
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| _version_ | 1797066795152048128 |
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| author | Hodby, E Hechenblaikner, G Marago, O Arlt, J Hopkins, S Foot, C |
| author_facet | Hodby, E Hechenblaikner, G Marago, O Arlt, J Hopkins, S Foot, C |
| author_sort | Hodby, E |
| collection | OXFORD |
| description | We report on the realization of a stiff magnetic trap with independently adjustable trap frequencies, ω-z$/ and ω-r$/ in the axial and radial directions, respectively. This has been achieved by applying an axial modulation to a time-averaged orbiting potential (TOP) trap. The frequency ratio of the trap, ω-z$//ω-r$/, can be decreased continuously from the original TOP trap value of 2.83 down to 1.6. We have transferred a Bose-Einstein condensate (BEC) into this trap and obtained very good agreement between its observed anisotropic expansion and the hydrodynamic predictions. Our method can be extended to obtain a spherical trapping potential, which has a geometry of particular theoretical interest. |
| first_indexed | 2024-03-06T21:47:07Z |
| format | Journal article |
| id | oxford-uuid:49fa818d-fba2-4557-8bf9-19c7daf6ce56 |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-06T21:47:07Z |
| publishDate | 2000 |
| publisher | IOP |
| record_format | dspace |
| spelling | oxford-uuid:49fa818d-fba2-4557-8bf9-19c7daf6ce562022-03-26T15:34:55ZBose-Einstein condensation in a stiff TOP trap with adjustable geometryJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:49fa818d-fba2-4557-8bf9-19c7daf6ce56EnglishSymplectic Elements at OxfordIOP2000Hodby, EHechenblaikner, GMarago, OArlt, JHopkins, SFoot, CWe report on the realization of a stiff magnetic trap with independently adjustable trap frequencies, ω-z$/ and ω-r$/ in the axial and radial directions, respectively. This has been achieved by applying an axial modulation to a time-averaged orbiting potential (TOP) trap. The frequency ratio of the trap, ω-z$//ω-r$/, can be decreased continuously from the original TOP trap value of 2.83 down to 1.6. We have transferred a Bose-Einstein condensate (BEC) into this trap and obtained very good agreement between its observed anisotropic expansion and the hydrodynamic predictions. Our method can be extended to obtain a spherical trapping potential, which has a geometry of particular theoretical interest. |
| spellingShingle | Hodby, E Hechenblaikner, G Marago, O Arlt, J Hopkins, S Foot, C Bose-Einstein condensation in a stiff TOP trap with adjustable geometry |
| title | Bose-Einstein condensation in a stiff TOP trap with adjustable geometry |
| title_full | Bose-Einstein condensation in a stiff TOP trap with adjustable geometry |
| title_fullStr | Bose-Einstein condensation in a stiff TOP trap with adjustable geometry |
| title_full_unstemmed | Bose-Einstein condensation in a stiff TOP trap with adjustable geometry |
| title_short | Bose-Einstein condensation in a stiff TOP trap with adjustable geometry |
| title_sort | bose einstein condensation in a stiff top trap with adjustable geometry |
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