Self-trapping of Bose-Einstein condensates expanding into shallow optical lattices
We observe a sudden breakdown of the transport of a strongly repulsive Bose-Einstein condensate through a shallow optical lattice of finite width. We are able to attribute this behavior to the development of a self-trapped state by using accurate numerical methods and an analytical description in te...
| Main Authors: | , , , |
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| Format: | Journal article |
| Language: | English |
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2008
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| _version_ | 1826285230123646976 |
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| author | Rosenkranz, M Jaksch, D Lim, F Bao, W |
| author_facet | Rosenkranz, M Jaksch, D Lim, F Bao, W |
| author_sort | Rosenkranz, M |
| collection | OXFORD |
| description | We observe a sudden breakdown of the transport of a strongly repulsive Bose-Einstein condensate through a shallow optical lattice of finite width. We are able to attribute this behavior to the development of a self-trapped state by using accurate numerical methods and an analytical description in terms of nonlinear Bloch waves. The dependence of the breakdown on the lattice depth and the interaction strength is investigated. We show that it is possible to prohibit the self-trapping by applying a constant offset potential to the lattice region. Furthermore, we observe the disappearance of the self-trapped state after a finite time as a result of the revived expansion of the condensate through the lattice. This revived expansion is due to the finite width of the lattice. © 2008 The American Physical Society. |
| first_indexed | 2024-03-07T01:25:44Z |
| format | Journal article |
| id | oxford-uuid:91e9b88f-c59c-429c-b3e9-9cd4418202a2 |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-07T01:25:44Z |
| publishDate | 2008 |
| record_format | dspace |
| spelling | oxford-uuid:91e9b88f-c59c-429c-b3e9-9cd4418202a22022-03-26T23:21:52ZSelf-trapping of Bose-Einstein condensates expanding into shallow optical latticesJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:91e9b88f-c59c-429c-b3e9-9cd4418202a2EnglishSymplectic Elements at Oxford2008Rosenkranz, MJaksch, DLim, FBao, WWe observe a sudden breakdown of the transport of a strongly repulsive Bose-Einstein condensate through a shallow optical lattice of finite width. We are able to attribute this behavior to the development of a self-trapped state by using accurate numerical methods and an analytical description in terms of nonlinear Bloch waves. The dependence of the breakdown on the lattice depth and the interaction strength is investigated. We show that it is possible to prohibit the self-trapping by applying a constant offset potential to the lattice region. Furthermore, we observe the disappearance of the self-trapped state after a finite time as a result of the revived expansion of the condensate through the lattice. This revived expansion is due to the finite width of the lattice. © 2008 The American Physical Society. |
| spellingShingle | Rosenkranz, M Jaksch, D Lim, F Bao, W Self-trapping of Bose-Einstein condensates expanding into shallow optical lattices |
| title | Self-trapping of Bose-Einstein condensates expanding into shallow optical lattices |
| title_full | Self-trapping of Bose-Einstein condensates expanding into shallow optical lattices |
| title_fullStr | Self-trapping of Bose-Einstein condensates expanding into shallow optical lattices |
| title_full_unstemmed | Self-trapping of Bose-Einstein condensates expanding into shallow optical lattices |
| title_short | Self-trapping of Bose-Einstein condensates expanding into shallow optical lattices |
| title_sort | self trapping of bose einstein condensates expanding into shallow optical lattices |
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