Vortex-line solitons in a periodically modulated Bose gas
arXiv:cond-mat/0404150 · doi:10.1103/PhysRevLett.93.070402
Abstract
We study the nonlinear excitations of a vortex-line in a Bose-Einstein condensate trapped in a one-dimensional optical lattice. We find that the classical Euler dynamics of the vortex results in a description of the vortex line in terms of a (discrete) one-dimensional Gross-Pitaevskii equation, which allows for both bright and gray soliton solutions. We discuss these solutions in detail and predict that it is possible to create vortex-line solitons with current experimental capabilities.
minor changes, updated/corrected references, 4 pages, 3 figures
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- Modulational Instability and Complex Dynamics of Confined Matter-Wave Solitons
- Quantum fluctuations of a vortex in an optical lattice
- Quantum theory of a vortex line in an optical lattice
- Spontaneous squeezing of a vortex in an optical lattice