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http://hdl.handle.net/2445/9581
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DC Field | Value | Language |
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dc.contributor.author | Guilleumas, Montserrat | cat |
dc.contributor.author | Graham, R. (Robert), 1942- | cat |
dc.date.accessioned | 2009-10-06T10:31:24Z | - |
dc.date.available | 2009-10-06T10:31:24Z | - |
dc.date.issued | 2001 | cat |
dc.identifier.issn | 1050-2947 | cat |
dc.identifier.uri | http://hdl.handle.net/2445/9581 | - |
dc.description.abstract | We consider noncentered vortices and their arrays in a cylindrically trapped Bose-Einstein condensate at zero temperature. We study the kinetic energy and the angular momentum per particle in the Thomas-Fermi regime and their dependence on the distance of the vortices from the center of the trap. Using a perturbative approach with respect to the velocity field of the vortices, we calculate, to first order, the frequency shift of the collective low-lying excitations due to the presence of an off-center vortex or a vortex array, and compare these results with predictions that would be obtained by the application of a simple sum-rule approach, previously found to be very successful for centered vortices. It turns out that the simple sum-rule approach fails for off-centered vortices. | eng |
dc.format.extent | 9 p. | cat |
dc.format.mimetype | application/pdf | eng |
dc.language.iso | eng | eng |
dc.publisher | The American Physical Society | eng |
dc.relation.isformatof | Reproducció digital del document publicat en format paper, proporcionada per PROLA i http://dx.doi.org/10.1103/PhysRevA.64.033607 | cat |
dc.relation.ispartof | Physical Review A, 2001, vol. 64, núm. 3, p. 033607. | eng |
dc.relation.uri | http://dx.doi.org/10.1103/PhysRevA.64.033607 | - |
dc.rights | (c) The American Physical Society, 2001 | eng |
dc.source | Articles publicats en revistes (Física Quàntica i Astrofísica) | - |
dc.subject.classification | Condensació de Bose-Einstein | cat |
dc.subject.classification | Estadística quàntica | cat |
dc.subject.classification | Ionització | cat |
dc.subject.other | Bose-Einstein condensation | eng |
dc.subject.other | Quantum statistics | eng |
dc.subject.other | Ionization | eng |
dc.title | Off-axis vortices in trapped Bose-condensed gases: Angular momentum and frequency splitting | eng |
dc.type | info:eu-repo/semantics/article | eng |
dc.type | info:eu-repo/semantics/publishedVersion | - |
dc.identifier.idgrec | 522510 | cat |
dc.rights.accessRights | info:eu-repo/semantics/openAccess | - |
Appears in Collections: | Articles publicats en revistes (Física Quàntica i Astrofísica) |
Files in This Item:
File | Description | Size | Format | |
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522510.pdf | 115.78 kB | Adobe PDF | View/Open |
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