| Dynamics of Bose–Einstein condensate in a harmonic potential and a Gaussian energy barrier |
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| 作者姓名： | 花巍 李彬 刘学深 |
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| 作者单位： | Institute of Atomic and Molecular Physics, Jilin University, Changchun 130012, China |
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| 基金项目： | Project supported by the National Natural Science Foundation of China (Grant No. 10974068). |
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| 摘 要： | ![]()
We have studied the dynamics of Bose–Einstein condensate by solving numerically the Gross-Pitaevskii (GP) equation. We examined the periodic behaviour of the condensate in a shifted harmonic potential, and further demonstrated the tunneling effect of a condensate through a Gaussian energy barrier, which is inserted after the condensate has been excited by shifting the harmonic trapping potential to a side. Moreover, it is shown that the initial condensate evolves dynamically into two separate moving condensates after the tunneling time under certain conditions.
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| 关 键 词： | 玻色爱因斯坦凝聚 动力学 高斯 能源 势垒 谐振 隧道效应 数值求解 |
| 收稿时间： | 2010-04-12 |
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