旋转势场中具有吸引相互作用的局域物质波斑图
Localized matter-waves patterns with attractive interaction in rotating potentials
摘要：
本文考虑了一个二维吸引玻色-爱因斯坦凝聚体（BEC）模型。首先，我们考虑一个具有临界强度的谐振势，它在最低朗道能级（LLL）处产生准孤子。我们用数值方法和变分近似方法描述了一族LLL准孤子，两者吻合得很好。我们证明，踢LLL模式或应用斜坡电位设置它在拉莫尔（回旋）运动，也可以准确地模拟VA。
英文摘要：
We consider a two-dimensional (2D) model of a rotating attractive Bose-Einstein condensate (BEC), trapped in an external potential. First, an harmonic potential with the critical strength is considered, which generates quasi-solitons at the lowest Landau level (LLL). We describe a family of the LLL quasi-solitons using both numerical method and a variational approximation (VA), which are in good agreement with each other. We demonstrate that kicking the LLL mode or applying a ramp potential sets it in the Larmor (cyclotron) motion, that can also be accurately modeled by the VA.
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