Oblique collisions and catching-up phenomena of vortex dipoles in a uniform Bose–Einstein condensate
文献类型：期刊论文
| 作者 | Yang,Guoquan1; Zhang,Suying1; Han,Wei2 |
| 刊名 | Physica Scripta
 |
| 出版日期 | 2019-04-24 |
| 卷号 | 94期号:7 |
| 关键词 | Bose–Einstein condensate vortex dipole collision of two vortex dipoles |
| ISSN号 | 0031-8949 |
| DOI | 10.1088/1402-4896/ab1220 |
| 英文摘要 | Abstract We investigate the collisional dynamics of two vortex dipoles in a uniform two-dimensional Bose–Einstein condensate. It is found that the dynamics are deeply related to the moving directions and sizes of the initial vortex dipoles. For the oblique collisions of two vortex dipoles with the same size, we find that the vortices in the two initial vortex dipoles recombine into two new vortex dipoles which scatter in the opposite directions. For the catching-up processes of two vortex dipoles with different size, we find that the faster vortex dipole speeds up and passes through the slower vortex dipole. If the size of the vortex dipoles are small, we also observe vortex annihilation and vortex resurrection. The corresponding parameter ranges of different collisional dynamics are discussed. |
| 语种 | 英语 |
| WOS记录号 | IOP:0031-8949-94-7-AB1220 |
| 出版者 | IOP Publishing |
| 源URL | [http://210.72.145.45/handle/361003/10744]  |
| 专题 | 中国科学院国家授时中心 |
| 作者单位 | 1.Institute of Theoretical Physics, State Key Laboratory of Quantum Optics and Quantum Optics Devices, Shanxi University, Taiyuan, Shanxi 030006, People’s Republic of China 2.Key Laboratory of Time and Frequency Primary Standards, National Time Service Center, Chinese Academy of Sciences, Xi’an 710600, People’s Republic of China |
| 推荐引用方式 GB/T 7714 | Yang,Guoquan,Zhang,Suying,Han,Wei. Oblique collisions and catching-up phenomena of vortex dipoles in a uniform Bose–Einstein condensate[J]. Physica Scripta,2019,94(7). |
| APA | Yang,Guoquan,Zhang,Suying,&Han,Wei.(2019).Oblique collisions and catching-up phenomena of vortex dipoles in a uniform Bose–Einstein condensate.Physica Scripta,94(7). |
| MLA | Yang,Guoquan,et al."Oblique collisions and catching-up phenomena of vortex dipoles in a uniform Bose–Einstein condensate".Physica Scripta 94.7(2019). |
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来源：国家授时中心
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