Self-trapping of Bose-Einstein condensates expanding into shallow optical lattices

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dc.creatorRosenkranz, M.
dc.creatorJaksch, D.
dc.creatorLim, F. Y.
dc.creatorBao, W.
dc.date2008-04-13
dc.date2008-06-12
dc.date.accessioned2026-07-07T09:43:53Z
dc.date.available2026-07-07T09:43:53Z
dc.descriptionWe 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.
dc.description7 pages, 5 figures, RevTeX4. Published version. Changed title, minor clarifications, added two references, also added arXiv ids for most references
dc.identifierhttps://arxiv.org/abs/0804.2068
dc.identifierhttp://arxiv.org/abs/0804.2068
dc.identifierPhys. Rev. A 77, 063607 (2008)
dc.identifierdoi:10.1103/PhysRevA.77.063607
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/162680
dc.subjectQuantum Physics
dc.subjectOther Condensed Matter
dc.titleSelf-trapping of Bose-Einstein condensates expanding into shallow optical lattices
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