| Controllable Magnetic Focusing of Cold Atoms on a Chip |
| |
| 作者姓名： | 刘泱 恽旻 印建平 |
| |
| 作者单位： | Key Laboratory for Optically and Magnetic Resonance Spectroscopy, Department of Physics, East China Normal University, Shanghai 200062 |
| |
| 基金项目： | Supported by the National Natural Science Foundation of China under Grant Nos 10174050, 10374029, and 10434060, the Shanghai Priority Academic Discipline, and the 211 Foundation of the Ministry of Education of China. |
| |
| 摘 要： | We propose a new lens scheme to focus cold atoms by using a controllable inhomogeneous magnetic field from a square current-carrying wire fabricated on a chip. The spatial distributions of the magnetic field are calculated, and the results show that the generated magnetic field is a two-dimensional （2D） quadrupole one and can be used to focus cold atoms or a cold atomic beam. The dynamic processes of cold atoms passing through our square wire layout and its focusing properties are studied by using Monte Carlo simulations. Our study shows that the atomic clouds can be focused effectively by our magnetic lens scheme, and the focal length of the atomic lens and its radius of focused spot can be continuously changed by adjusting the current in the wires.
|
| 关 键 词： | 可控磁聚焦 零下原子 空间分布 原子物理学 |
| 收稿时间： | 2005-11-17 |
| 修稿时间： | 2005-11-17 |
Controllable Magnetic Focusing of Cold Atoms on a Chip |
| |
| LIU Yang, YUN Min, YIN Jian-Ping.Controllable Magnetic Focusing of Cold Atoms on a Chip[J].Chinese Physics Letters,2006,23(7):1698-1701. |
| |
| Authors: | LIU Yang YUN Min YIN Jian-Ping |
| |
| Abstract: | |
| |
| Keywords: | |
| 本文献已被 维普 等数据库收录！ |
