Topologically trapped vortex molecules in Bose-Einstein condensates
arXiv:0810.4403 · doi:10.1103/PhysRevA.78.053610
Abstract
In a numerical experiment based on Gross-Pitaevskii formalism, we demonstrate unique topological quantum coherence in optically trapped Bose-Einstein condensates (BECs). Exploring the fact that vortices in rotating BEC can be pinned by a geometric arrangement of laser beams, we show the parameter range in which vortex-antivortex molecules or multiquantum vortices are formed as a consequence of the optically imposed symmetry. Being low-energy states, we discuss the conditions for spontaneous nucleation of these unique molecules and their direct experimental observation, and provoke the potential use of the phase print of an antivortex or a multiquantum vortex when realized in unconventional circumstances.
5 pages, 4 figures
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Cited by in corpus (9)
- Size and dynamics of vortex dipoles in dilute Bose-Einstein condensates
- Ground-state multiquantum vortices in rotating two-species superfluids
- Manipulation of Vortices by Localized Impurities in Bose-Einstein Condensates
- Skyrmionic vortex lattices in coherently coupled three-component Bose-Einstein condensates
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