Dynamics of bright/dark solitons in Bose-Einstein condensates with time-dependent scattering length and external potential

被引：23

作者：

Zhang Ai-Xia ^{[1
]}

Xue Ju-Kui ^{[1
]}

机构：

[1] NW Normal Univ, Phys & Elect Engn Coll, Lanzhou 730070, Peoples R China

来源：

CHINESE PHYSICS LETTERS | 2008年 / 25卷 / 01期

关键词：

D O I：

10.1088/0256-307X/25/1/011

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We present an analytical study on the dynamics of bright and dark solitons in Bose-Einstein condensates with time-varying atomic scattering length in a time-varying external parabolic potential. A set of exact soliton solutions of the one-dimensional Gross-Pitaevskii equation are obtained, including fundamental bright solitons, higher-order bright solitons, and dark solitons. The results show that the soliton's parameters (amplitude, width, and period) can be changed in a controllable manner by changing the scattering length and external potential. This may be helpful to design experiments.

引用

页码：39 / 41

页数：3

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