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Matter-wave gap vortices in optical lattices | | Elena A Ostrovskaya
; Yuri S Kivshar
; | | Date: |
15 Oct 2004 | | Journal: | Phys Rev Lett, 93 (16), 160405 | | Abstract: | We predict the existence of spatially localized nontrivial topological states of a Bose-Einstein condensate with repulsive atomic interactions confined by an optical lattice. These nonlinear localized states, matter-wave gap vortices, carry a vortexlike phase dislocation and exist in the gaps of the matter-wave band-gap 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: | PubMed, pmid15524961 | | Other source: | [GID 74192] cond-mat/0404714 | | Services: | Forum | Review | Favorites | |
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