Azimuthal vortex clusters in Bose-Einstein condensates
Lashkin, Volodymyr M; Desyatnikov, Anton S; Ostrovskaya, Elena; Kivshar, Yuri
Description
We describe, analytically and numerically, topologically nontrivial stationary states with azimuthal modulation of density in a repulsive Bose-Einstein condensate (BEC) confined in a harmonic trap. We show that, depending on the number of density peaks and total topological charge, these states can have a sophisticated phase texture associated with a vortex cluster. For a given topological charge, the form of density distribution and the structure of phase singularities are uniquely linked,...[Show more]
Collections | ANU Research Publications |
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Date published: | 2012 |
Type: | Journal article |
URI: | http://hdl.handle.net/1885/60818 |
Source: | Physical Review A: Atomic, Molecular and Optical Physics |
DOI: | 10.1103/PhysRevA.85.013620 |
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