Two-dimensional multisolitons and azimuthons in Bose-Einstein condensates with attraction
arXiv:0710.2745 · doi:10.1103/PhysRevA.77.025602
Abstract
We present spatially localized nonrotating and rotating (azimuthon) multisolitons in the two-dimensional (2D) ("pancake-shaped configuration") Bose-Einstein condensate (BEC) with attractive interaction. By means of a linear stability analysis, we investigate the stability of these structures and show that rotating dipole solitons are stable provided that the number of atoms is small enough. The results were confirmed by direct numerical simulations of the 2D Gross-Pitaevskii equation.
4 pages, 4 figures
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- Structure of two-component Bose-Einstein condensates with respective vortex-antivortex superposition states
- Azimuthons in weakly nonlinear waveguides of different symmetries
- Stable three-dimensional spatially modulated vortex solitons in Bose-Einstein condensates
- Tracking azimuthons in nonlocal nonlinear media
- Dynamics of dipoles and vortices in nonlinearly-coupled three-dimensional harmonic oscillators
- Existence, stability and nonlinear dynamics of vortices and vortex clusters in anisotropic Bose-Einstein condensates