| 以慢原子束方式进行原子转移的双磁光阱系统 |
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| 引用本文： | 周蜀渝,徐震,周善钰,王育竹. 以慢原子束方式进行原子转移的双磁光阱系统[J]. 物理学报, 2007, 56(1): 165-169 |
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| 作者姓名： | 周蜀渝 徐震 周善钰 王育竹 |
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| 作者单位： | 中国科学院上海光学精密机械研究所量子光学重点实验室,上海,201800 |
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| 基金项目： | 国家自然科学基金;国家重点基础研究发展计划(973计划) |
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| 摘 要： | 建立了一套用于玻色-爱因斯坦凝聚实验的铷原子双磁光阱装置.从低速强源中获得慢原子束，向超高真空磁光阱进行原子转移.低速强源磁光阱与超高真空磁光阱之间可维持3个量级的压强差,超高真空磁光阱的真空度最高可达1×10-9 Pa. 慢原子束的束流通量达1×109/s. 约4×108个87Rb原子被装载到超高真空磁光阱中.还讨论了两种典型情况下磁光阱中装载的最大原子数.
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| 关 键 词： | 低速强源 慢原子束 超高真空磁光阱 |
| 文章编号： | 1000-3290/2007/56(01)/0165-05 |
| 收稿时间： | 2006-02-08 |
| 修稿时间： | 2006-02-08 |
A double magneto-optical trap system using a slow atomic beam for atom transfer |
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| Zhou Shu-Yu,Xu Zhen,Zhou Shan-Yu,Wang Yu-Zhu. A double magneto-optical trap system using a slow atomic beam for atom transfer[J]. Acta Physica Sinica, 2007, 56(1): 165-169 |
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| Authors: | Zhou Shu-Yu Xu Zhen Zhou Shan-Yu Wang Yu-Zhu |
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| Affiliation: | Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China |
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| Abstract: | A rubidium double magneto-optical trap(MOT) system for Bose-Einstein condensation experiments has been set up. A slow atomic beam has been obtained with a low-velocity intense source (LVIS) and used to transfer atoms into an ultra-high-vacuum (UHV) MOT. By maintaining a pressure difference of 3 orders between LVIS-MOT and UHV-MOT, a lowest pressure of 1×10-9Pa can be achieved in UHV-MOT. The flux of the slow atomic beam is 1×109/s. About 4×108 87Rb atoms can be loaded into UHV-MOT. In this paper, maximum number of atoms captured in MOTs under two typical conditions have also been discussed. |
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| Keywords: | low-velocity intense source slow atomic beam ultra-high-vacuum magneto-optical trap |
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