Stability and dynamics of cross solitons in harmonically confined Bose-Einstein condensates

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Date
2013
Authors
Morgan, Tadhg
Busch, Thomas
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Publisher
American Physical Society
Published Version
10.1103/PhysRevA.88.063610
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Abstract
We examine the stability and dynamics of a family of crossed dark solitons in a harmonically confined Bose-Einstein condensate in two dimensions. Working in a regime where the fundamental snake instability is suppressed, we show the existence of an instability which leads to an interesting collapse and revival of the initial state for the fundamental case of two crossed solitons. The instability originates from the singular point where the solitons cross, and we characterize it by examining the Bogoliubov spectrum. Finally, we extend the treatment to systems of higher symmetry.
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Keywords
Dark solitons , Propagation
Citation
Morgan, T. and Busch, T. (2013) 'Stability and dynamics of cross solitons in harmonically confined Bose-Einstein condensates', Physical Review A, 88(6), 063610 (6pp). doi: 10.1103/PhysRevA.88.063610
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https://journals.aps.org/pra/abstract/10.1103/PhysRevA.88.063610
URI
https://hdl.handle.net/10468/4483
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Physics - Journal Articles
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© 2013, American Physical Society