Generating periodic interference in Bose-Einstein condensates

被引：1
|
作者：
Ji, Shen-Tong [1 ]
Wang, Yuan-Sheng [1 ]
Luo, Yue-E [1 ]
Liu, Xue-Shen [2 ]
机构：
[1] Guizhou Educ Univ, Sch Phys & Elect Sci, Guiyang 550018, Peoples R China
[2] Jilin Univ, Inst Atom & Mol Phys, Changchun 130012, Peoples R China
来源：
CHINESE PHYSICS B | 2016年 / 25卷 / 09期
基金：
中国国家自然科学基金;
关键词：
interference pattern; dark solitons; Bose-Einstein condensates; SOLITONS; EQUATION; DYNAMICS;
D O I：
10.1088/1674-1056/25/9/090303
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
The interference between two condensates with repulsive interaction is investigated numerically by solving the one-dimensional time-dependent Gross-Pitaevskii equation. The periodic interference pattern forms in two condensates, which are prepared in a double-well potential consisting of two truncated harmonic wells centered at different positions. Dark solitons are observed when two condensates overlap. Due to the existence of atom-atom interactions, atoms are transferred among the ground state and the excited states, which coincides with the condensate energy change.
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页数：5
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