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

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Control of Light-Atom Solitons and Atomic Transport by Optical Vortex Beams Propagating through a Bose-Einstein Condensate
Physical Review Letters ( IF 8.1 ) Pub Date : 2022-08-12 , DOI: 10.1103/physrevlett.129.073902
Grant W Henderson ₁ , Gordon R M Robb ₁ , Gian-Luca Oppo ₁ , Alison M Yao ₁

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We model propagation of far-red-detuned optical vortex beams through a Bose-Einstein condensate using nonlinear Schrödinger 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.

中文翻译：

通过玻色-爱因斯坦凝聚传播的光学涡旋光束控制光原子孤子和原子传输

我们使用非线性薛定谔和 Gross-Pitaevskii 方程模拟远红失谐光学涡旋光束通过 Bose-Einstein 凝聚体的传播。我们展示了耦合光原子孤子的形成，这些孤子在切向移动之前进行方位角旋转，携带角动量。孤子的数量和速度取决于光场的轨道角动量。使用贝塞尔-高斯光束增加了径向限制，因此孤子可以以固定的方位角速度旋转。我们的模型提供了一种高度可控的引导 BEC 和原子传输的方法。

更新日期：2022-08-13

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