Bright solitons in a 2D spin-orbit-coupled dipolar Bose-Einstein condensate
arXiv:1504.06575 · doi:10.1103/PhysRevA.92.013633
Abstract
We study a two-dimensional spin-orbit-coupled dipolar Bose-Einstein condensate with repulsive contact interactions by both the variational method and the imaginary time evolution of the Gross-Pitaevskii equation. The dipoles are completely polarized along one direction in the 2D plane so as to provide an effective attractive dipole-dipole interaction. We find two types of solitons as the ground states arising from such attractive interactions: a plane wave soliton with a spatially varying phase and a stripe soliton with a spatially oscillating density for each component. Both types of solitons possess smaller size and higher anisotropy than the soliton without spin-orbit coupling. Finally, we discuss the properties of moving solitons, which are nontrivial because of the violation of Galilean invariance.
9 pages, 5 figures
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Cited by in corpus (26)
- Two-dimensional solitons in dipolar Bose-Einstein condensates with spin-orbit coupling
- Two-dimensional dipolar gap solitons in free space with spin-orbit coupling
- Two- and one-dimensional gap solitons in spin-orbit-coupled systems with Zeeman splitting
- Modulational instability in binary spin-orbit-coupled Bose-Einstein condensates
- Excited states of two-dimensional solitons supported by the spin-orbit coupling and field-induced dipole-dipole repulsion
- Self-trapping under the two-dimensional spin-orbit-coupling and spatially growing repulsive nonlinearity
- Bright solitons in a spin-tensor-momentum-coupled Bose-Einstein condensate
- Two-dimensional composite solitons in Bose-Einstein condensates with spatially confined spin-orbit coupling
- Magnetic stripe soliton and localized stripe wave in spin-1 Bose-Einstein condensates
- Quasi-one-dimensional spin-orbit- and Rabi-coupled bright dipolar Bose-Einstein-condensate solitons
- Tail-free self-accelerating solitons and vortices
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