Nonlinear resonance phenomenon of one-dimensional Bose Einstein condensate under periodic modulation

被引：0
|
作者：
花巍 [1 ]
刘世兴 [2 ]
机构：
[1] College of Physics and Technology,Shenyang Normal University
[2] College of Physics,Liaoning University
来源：
Chinese Physics B | 2014年 / 23卷 / 02期
基金：
中国国家自然科学基金;
关键词：
Bose–Einstein condensate; resonance; periodic modulation; symplectic method;
D O I：
暂无
中图分类号：
O415 [非线性物理学];
学科分类号：
070201 ;
摘要：
We investigate the effect of an external periodic modulation on the one-dimensional(1D)Bose–Einstein condensate with harmonic trapping potential.By numerically solving the Gross–Pitaevskii equation with symplectic algorithm,the nonlinear resonance phenomenon is shown and the corresponding Fourier spectrum is given.The autoresonance phenomenon is also presented under almost periodic external modulation,and it shows that the condensate eventually evolves into quasi-periodic oscillation.
引用
收藏
页码：116 / 120
页数：5
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