Single atoms transferring between a magneto-optical trap and a far-off-resonance optical dipole trap

被引：18
|
作者：
He Jun
Wang Jing
Yang Bao-Dong
Zhang Tian-Cai
Wang Jun-Min [1 ]
机构：
[1] Shanxi Univ, State Key Lab Quantum Opt & Quantum Opt Devices, Taiyuan 030006, Peoples R China
来源：
CHINESE PHYSICS B | 2009年 / 18卷 / 08期
基金：
高等学校博士学科点专项科研基金; 中国国家自然科学基金;
关键词：
single atoms; magneto-optical trap; far-off-resonance optical dipole trap; lifetime of single atoms; NEUTRAL ATOMS; VAPOR-CELL; LIGHT;
D O I：
10.1088/1674-1056/18/8/046
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
Based on our work on single cesium atoms trapped in a large-magnetic-gradient vapour-cell magneto-optical trap (MOT), the signal-to-noise ratio (SNR) is remarkably improved. Also a far-off-resonance optical dipole trap (FORT) formed by a strongly-focused 1064 nm single frequency Nd:YVO4 laser beam is introduced. One cesium atom is prepared in the MOT, and then it can transfer successfully between the MOT and the FORT which is overlapped with the MOT. Utilizing the effective transfer, the lifetime of single atoms trapped in the FORT is measured to be 6.9+/-0.3s. Thus we provide a system where the atomic qubit can be coherently manipulated.
引用
收藏
页码：3404 / 3408
页数：5
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