Geometric Hall Effect of $$^{23}$$23Na Condensate in a Time- and Space-Dependent Magnetic Field
Geometric Hall Effect of $$^{23}$$23Na Condensate in a Time- and Space-Dependent Magnetic Field
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DOI：
10.1007/s10909-016-1494-z
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发表时间：
2016-01
影响因子：
2
通讯作者：
G. Zheng;Linguang Yang;Gao-Zhan Chang;Zhe Wu
中科院分区：
文献类型：
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作者：
G. Zheng;Linguang Yang;Gao-Zhan Chang;Zhe Wu
我们用变分方法数值模拟了Na凝聚体在时间和空间相关磁场中的动力学。结果表明，该方法是描述同时激励呼吸模、剪刀模和偶极子模的复杂系统动力学的有效方法。我们的结果与Choi等人的实验观察结果一致。(Phys Rev Lett111：245301,2013年)。我们定性地再现了几何霍尔效应和共振行为。我们还发现，凝聚体呈现剪刀式运动，这可能会起到剪切力，使凝聚体变形，从而导致量子化涡旋的动力学成核。
We simulate numerically the dynamics ofNa condensate in a time- and space-dependent magnetic field with a variational approach. It is shown to be an efficient method to describe the complex dynamics of the system, which may excite the breather mode, the scissor mode, and the dipole mode simultaneously. Our results agree with the experimental observations of Choi et al. (Phys Rev Lett 111:245301, 2013). We reproduce qualitatively the geometric Hall effect and resonance behavior. We also find that the condensate shows a scissor-mode-like motion, which may play the shearing force to deform the condensate and consequently leads to the dynamical nucleation of quantized vortices.