论文标题
通过光原子的孤子和原子旋转的转运来控制通过Bose-Einstein冷凝物传播的光学涡流梁
Control of light-atom solitons and atomic transport by optical vortex beams propagating through a Bose-Einstein Condensate
论文作者
论文摘要
我们使用非线性Schrödinger和Gross-pitaevskii方程对远红外光涡流束的传播建模。我们显示了耦合的光/原子孤子的形成，这些孤子在切向移动之前旋转方位角旋转，带有角动量。孤子的数量和速度取决于光场的轨道角动量。使用Bessel-Gauss光束会增加径向限制，从而使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方法来引导BEC和原子运输。
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 channelling a BEC and atomic transport.
