Formation and dynamics of vortices in a Bose–Einstein condensate with a moving impenetrable disk-shaped potential
文献类型：期刊论文
| 作者 | Chen,Guang-Ping1,2,3; Dong,Biao1,2; Wang,Lin-Xue1,2; Xie,Zheng-Wei4; Zhang,Shou-Gang1 |
| 刊名 | Laser Physics
 |
| 出版日期 | 2016-08-31 |
| 卷号 | 26期号:10 |
| 关键词 | Bose–Einstein condensate impenetrable disk-shaped potential vortex dipole |
| ISSN号 | 1054-660X |
| DOI | 10.1088/1054-660X/26/10/105502 |
| 英文摘要 | Abstract We consider a quasi-two-dimensional Bose–Einstein condensate with a moving impenetrable disk-shaped potential. By performing direct numerical simulations, we investigate the formation and dynamics of the vortices in the wake as a function of the moving velocity and the radius of the potential. For moderate moving velocity, we observe the formation of a bound vortex pair in the wake of the potential. Its shedding period and associated patterns depend on the radius of the potential, showing V-shaped, periodic, or complex wakes. More interestingly, at high velocity both the vortex pair and vortex dipole can be formed simultaneously. Furthermore, the activation time for vortex formation is investigated for different velocities. We also give an experimental protocol to observe these phenomena in future experiments. |
| 语种 | 英语 |
| WOS记录号 | IOP:1054-660X-26-10-105502 |
| 出版者 | IOP Publishing |
| 源URL | [http://210.72.145.45/handle/361003/10683]  |
| 专题 | 中国科学院国家授时中心 |
| 作者单位 | 1.Key Laboratory of Time and Frequency Primary Standards, National Time Service Center, Chinese Academy of Sciences, Xi’an 710600, People’s Republic of China 2.University of Chinese Academy of Sciences, Beijing 100049, People’s Republic of China 3.School of Physics and Mech-tronic Engineering, Sichuan University of Art and Science, Dazhou 635000, People’s Republic of China 4.College of Physics and Electronic Engineering, Sichuan Normal University, Chengdu 610066, People’s Republic of China |
| 推荐引用方式 GB/T 7714 | Chen,Guang-Ping,Dong,Biao,Wang,Lin-Xue,et al. Formation and dynamics of vortices in a Bose–Einstein condensate with a moving impenetrable disk-shaped potential[J]. Laser Physics,2016,26(10). |
| APA | Chen,Guang-Ping,Dong,Biao,Wang,Lin-Xue,Xie,Zheng-Wei,&Zhang,Shou-Gang.(2016).Formation and dynamics of vortices in a Bose–Einstein condensate with a moving impenetrable disk-shaped potential.Laser Physics,26(10). |
| MLA | Chen,Guang-Ping,et al."Formation and dynamics of vortices in a Bose–Einstein condensate with a moving impenetrable disk-shaped potential".Laser Physics 26.10(2016). |
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来源：国家授时中心
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