Bright Solitons in a Two-Dimensional Spin-Orbit-Coupled Dipolar Bose-Einstein Condensate

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Bright Solitons in a Two-Dimensional Spin-Orbit-Coupled Dipolar Bose-Einstein Condensate

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Title: Bright Solitons in a Two-Dimensional Spin-Orbit-Coupled Dipolar Bose-Einstein Condensate
Author(s):
Xu, Y.;
Zhang, Y.;
Zhang, Chuanwei
Date Created: 2015-07-27
Item Type: Article
Keywords: Show Keywords
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 two-dimensional plane to provide an effective attractive dipole-dipole interaction. We find two types of solitons as the ground states arising from such attractive dipole-dipole 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.
Publisher: American Physical Society
ISSN: 1050-2947
Source: Physical Review A - Atomic, Molecular, and Optical Physics
Link to Related Resource: http://dx.doi.org/10.1103/PhysRevA.92.013633
Persistent Link: http://hdl.handle.net/10735.1/4652
Bibliographic Citation: Xu, Y., Y. Zhang, and C. Zhang. 2015. "Bright solitons in a two-dimensional spin-orbit-coupled dipolar Bose-Einstein condensate." Physical Review A - Atomic, Molecular, and Optical Physics 92(1) doi: 10.1103/PhysRevA.92.013633.
Terms of Use: ©2015 American Physical Society

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