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17 October 2019
 
  » arxiv » cond-mat/0404714

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Matter-wave gap vortices in optical lattices
Elena A. Ostrovskaya ; Yuri S. Kivshar ;
Date 29 Apr 2004
Subject Other; Soft Condensed Matter | cond-mat.other cond-mat.soft
AbstractWe predict the existence of spatially localized nontrivial topological states of the Bose-Einstein condensate with repulsive atomic interactions confined by an optical lattice. These nonlinear localized states, matter-wave gap vortices, possess a phase dislocation and exist in the gaps of the matter-wave bandgap spectrum due to the Bragg scattering. We discuss the structure, stability, and formation dynamics of the gap vortices in the case of two-dimensional optical lattices.
Source arXiv, cond-mat/0404714
Other source [GID 74192] pmid15524961
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