Control of Light-Atom Solitons and Atomic Transport by Optical Vortex Beams Propagating through a Bose-Einstein Condensate

被引:12
作者
Henderson, Grant W. [1 ,2 ]
Robb, Gordon R. M. [1 ,2 ]
Oppo, Gian-Luca [1 ,2 ]
Yao, Alison M. [1 ,2 ]
机构
[1] Univ Strathclyde, Dept Phys, Glasgow G4 0NG, Scotland
[2] SUPA, Glasgow G4 0NG, Scotland
基金
英国工程与自然科学研究理事会; 欧盟地平线“2020”;
关键词
ORBITAL ANGULAR-MOMENTUM; DIFFRACTION; LASER;
D O I
10.1103/PhysRevLett.129.073902
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
We model propagation of far-red-detuned optical vortex beams through a Bose-Einstein condensate using nonlinear Schrodinger and Gross-Pitaevskii equations. We show the formation of coupled light-atomic solitons that rotate azimuthally before moving off tangentially, carrying angular momentum. The number, and velocity, of solitons, depends on the orbital angular momentum of the optical field. Using a Bessel-Gauss beam increases radial confinement so that solitons can rotate with fixed azimuthal velocity. Our model provides a highly controllable method of channeling a BEC and atomic transport.
引用
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页数:5
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