| Formation of combined solitons in two-component Bose—Einstein condensates |
| |
| 引用本文： | 李秋艳,李再东,姚淑芳,李禄,傅广生. Formation of combined solitons in two-component Bose—Einstein condensates[J]. 中国物理 B, 2010, 19(8): 80501-080501. DOI: 10.1088/1674-1056/19/8/080501 |
| |
| 作者姓名： | 李秋艳 李再东 姚淑芳 李禄 傅广生 |
| |
| 作者单位： | Department of Applied Physics, Hebei University of Technology, Tianjin 300401, China;School of Information Engineering, Hebei University of Technology, Tianjin 300401, China;Department of Applied Physics, Hebei University of Technology, Tianjin 300401, China;School of Information Engineering, Hebei University of Technology, Tianjin 300401, China;Department of Applied Physics, Hebei University of Technology, Tianjin 300401, China;College of Physics and Electronics Engineering, Shanxi University, Taiyuan 030006, China;School of Information Engineering, Hebei University of Technology, Tianjin 300401, China |
| |
| 基金项目： | Project supported by the Hundred Innovation Talents Supporting Fund of Hebei Province of China, the Natural Science Foundation of Hebei Province of China (Grant No. A2008000006), and the Natural Science Foundation of Shanxi Province of China (Grant No. 2007011007). |
| |
| 摘 要： | <正>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.
|
| 关 键 词： | Bose-Einstein condensates combined solitons |
| 收稿时间： | 2009-10-24 |
Formation of combined solitons in two-component Boseben Einstein condensates |
| |
| Li Qiu-Yan,Li Zai-Dong,Yao Shu-Fang,Li Lu and Fu Guang-Sheng. Formation of combined solitons in two-component Boseben Einstein condensates[J]. Chinese Physics B, 2010, 19(8): 80501-080501. DOI: 10.1088/1674-1056/19/8/080501 |
| |
| Authors: | Li Qiu-Yan Li Zai-Dong Yao Shu-Fang Li Lu Fu Guang-Sheng |
| |
| Affiliation: | College of Physics and Electronics Engineering, Shanxi University, Taiyuan 030006, China; Department of Applied Physics, Hebei University of Technology, Tianjin 300401, China; Department of Applied Physics, Hebei University of Technology, Tianjin 300401, China;School of Information Engineering, Hebei University of Technology, Tianjin 300401, China; School of Information Engineering, Hebei University of Technology, Tianjin 300401, China |
| |
| Abstract: | 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. |
| |
| Keywords: | Bose--Einstein condensates combined solitons |
| 本文献已被 CNKI 维普 等数据库收录！ |
| 点击此处可从《中国物理 B》浏览原始摘要信息 |
|
点击此处可从《中国物理 B》下载免费的PDF全文 |
|
