Stabilised bright solitons in Bose-Einstein condensates in an expulsive parabolic and complex potential

被引：4

作者：

Zhang Tao ^{[1
]}

Yang Zhan-Ying ^{[1
]}

Zhao Li-Chen ^{[1
]}

Yue Rui-Hong ^{[1
,2
]}

机构：

[1] NW Univ Xian, Dept Phys, Xian 710069, Peoples R China

[2] Ningbo Univ, Dept Phys, Ningbo 315211, Zhejiang, Peoples R China

来源：

CHINESE PHYSICS B | 2010年 / 19卷 / 07期

基金：

中国国家自然科学基金;

关键词：

Bose-Einstein condensates; one-dimensional Gross-Pitaevskii equation; bright soliton; MATTER WAVE SOLITONS; SCHRODINGER-EQUATION; DARK SOLITONS; COLLISION;

D O I：

10.1088/1674-1056/19/7/070502

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The exact, solitonic solutions of the one-dimensional nonlinear Schrodinger equation, which describes the dynamics of bright soliton in Bose-Einstein condensates with the time-dependent interaction in an expulsive parabolic and complex potential, are obtained by Darboux transformation. The results show that one can compress a bright soliton into an assumed peak of matter wave density by adusting the experimental parameter of the ratio of axial oscillation to radial oscillation or feeding parameter. Especially, when parameters satisfy the relation lambda = 2 gamma, the soliton is stable with time evolution without changing its shape and amplitude.

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页数：6

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