Formation of combined solitons in two-component Bose—Einstein condensates

被引：0

作者：

李秋艳 ^{[1
,2
]}

李再东 ^{[1
,2
]}

姚淑芳 ^{[1
]}

李禄 ^{[3
]}

傅广生 ^{[2
]}

机构：

[1] Department of Applied Physics,Hebei University of Technology

[2] School of Information Engineering,Hebei University of Technology

[3] College of Physics and Electronics Engineering,Shanxi University

来源：

Chinese Physics B | 2010年 / 19卷 / 08期

关键词：

Bose-Einstein condensates; combined solitons;

D O I：

暂无

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

We investigate the combined soliton solutions of two-component Bose—Einstein condensates with external potential. The "phase diagram" is obtained for the formation regions of different combined solitons.Our results show that the intraspecies(interspecies) interaction strengths and the external trapped potential clearly affect the formation of dark-dark, bright-bright,and dark-bright soliton solutions in different regions.Especially,we find that the bright-bright (dark-dark) soliton can exist in the case of both repulsive(attractive) intraspecies interaction strengths in the presence of external potential.This novel phenomenon is completely different from the formation of soliton solution of one-component Bose-Einstein condensates without external potential,and it will be useful for the study of two-component Bose-Einstein condensates.

引用

页码：139 / 143

页数：5

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