| Vector kink-dark complex solitons in a three-component Bose–Einstein condensate |
| |
| 基金项目： | Major Basic Research Program of Natural Science of Shaanxi Province(2018KJXX-094);National Natural Science Foundation of China(12022513);National Natural Science Foundation of China(11775176);National Natural Science Foundation of China(11947301);Scientific Research Program Funded by Shaanxi Provincial Education Department(20JK0872);Scientific Research Program Funded by Shaanxi Provincial Education Department(2017KCT-12) |
| |
| 摘 要： | We investigate kink-dark complex solitons(KDCSs) in a three-component Bose–Einstein condensate(BEC) with repulsive interactions and pair-transition(PT) effects. Soliton profiles critically depend on the phase differences between dark solitons excitation elements. We report a type of kink-dark soliton profile which shows a droplet-bubble-droplet with a density dip, in sharp contrast to previously studied bubble-droplets. The interaction between two KDCSs is further investigated. It demonstrates some striking particle transition behaviours during their collision processes, while soliton profiles survive after the collision. Additionally, we exhibit the state transition dynamics between a kink soliton and a dark soliton. These results suggest that PT effects can induce more abundant complex solitons dynamics in multi-component BEC.
|
| 收稿时间： | 2021-01-12 |
Vector kink-dark complex solitons in a three-component Bose–Einstein condensate |
| |
| Authors: | Yan Li Yan-Hong Qin Li-Chen Zhao Zhan-Ying Yang Wen-Li Yang |
| |
| Institution: | 1.School of Physics, Northwest University, Xi’an 710127, China;2.Shaanxi Key Laboratory for Theoretical Physics Frontiers Xi’an 710127, China;3.Peng Huanwu Center for Fundamental Theory, Xi’an 710127, China |
| |
| Abstract: | We investigate kink-dark complex solitons (KDCSs) in a three-component Bose–Einstein condensate (BEC) with repulsive interactions and pair-transition (PT) effects. Soliton profiles critically depend on the phase differences between dark solitons excitation elements. We report a type of kink-dark soliton profile which shows a droplet-bubble-droplet with a density dip, in sharp contrast to previously studied bubble-droplets. The interaction between two KDCSs is further investigated. It demonstrates some striking particle transition behaviours during their collision processes, while soliton profiles survive after the collision. Additionally, we exhibit the state transition dynamics between a kink soliton and a dark soliton. These results suggest that PT effects can induce more abundant complex solitons dynamics in multi-component BEC. |
| |
| Keywords: | kink-dark complex solitons pair-transition effects three-component Bose–Einstein condensate |
| 本文献已被 CNKI 等数据库收录！ |
| 点击此处可从《理论物理通讯》浏览原始摘要信息 |
| 点击此处可从《理论物理通讯》下载免费的PDF全文 |
