Please use this identifier to cite or link to this item: https://doi.org/10.1103/PhysRevA.77.063607
Title: Self-trapping of Bose-Einstein condensates expanding into shallow optical lattices
Authors: Rosenkranz, M.
Jaksch, D.
Yin Lim, F.
Bao, W. 
Issue Date: 11-Jun-2008
Citation: Rosenkranz, M., Jaksch, D., Yin Lim, F., Bao, W. (2008-06-11). Self-trapping of Bose-Einstein condensates expanding into shallow optical lattices. Physical Review A - Atomic, Molecular, and Optical Physics 77 (6) : -. ScholarBank@NUS Repository. https://doi.org/10.1103/PhysRevA.77.063607
Abstract: 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.
Source Title: Physical Review A - Atomic, Molecular, and Optical Physics
URI: http://scholarbank.nus.edu.sg/handle/10635/104090
ISSN: 10502947
DOI: 10.1103/PhysRevA.77.063607
Appears in Collections:Staff Publications

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