Directly Trapping Atoms in a U-Shaped Magneto-Optical Trap Using a Mini Atom Chip

YAN Hui; YANG Guo-Qing; WANG Jin; ZHAN Ming-Sheng

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Directly Trapping Atoms in a U-Shaped Magneto-Optical Trap Using a Mini Atom Chip

机译：使用微型原子芯片在U型磁光阱中直接捕获原子

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We experimentally demonstrate the trapping of 85 Rb atoms directly on a chip-size U-shaped magneto-optical trap (U-MOT). The trap includes a U-shaped wire on the chip, two bias magnetic field coils and laser beams.The capture volume of the U-MOT is theoretically calculated, and the trap is experimentally realized. With 2 A current applied to the U-shaped wire and 2-Gauss horizontal bias field, more than 2 x 106 atoms are trapped.In contrast with an ordinary mirror-MOT, this U-MOT captures atoms directly from the background, thus the trap size is greatly reduced. Based on this mini trap scheme, it is possible to realize a chip-size atom trap array for quantum information processing.

机译：我们实验证明了在芯片大小的U型磁光阱（U-MOT）上直接捕获85 Rb原子。该阱由芯片上的U型线，两个偏置磁场线圈和激光束组成，从理论上计算了U-MOT的捕获量，并通过实验实现了该阱。在U型导线上施加2 A电流和2高斯水平偏置场时，俘获了超过2 x 106个原子。与普通的反射镜MOT相比，该U-MOT直接从背景捕获原子，因此陷阱尺寸大大减小。基于这种微型陷阱方案，可以实现用于量子信息处理的芯片大小的原子陷阱阵列。

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来源
《中国物理快报：英文版》 |2008年第9期|3219-3222|共4页
作者
YAN Hui; YANG Guo-Qing; WANG Jin; ZHAN Ming-Sheng;
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作者单位

State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Wuhan Institute of Physics and Mathematics, Chinese Academy of Sciences, Wuhan 430071;

Center for Cold Atom Physics, Chinese Academy of Sciences, Wuhan 430071;

Graduate School, Chinese Academy of Sciences,Beijing,100080;

State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Wuhan Institute of Physics and Mathematics, Chinese Academy of Sciences, Wuhan 430071;

Center for Cold Atom Physics, Chinese Academy of Sciences, Wuhan 430071;

Graduate School, Chinese Academy of Sciences,Beijing,100080;

State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Wuhan Institute of Physics and Mathematics, Chinese Academy of Sciences, Wuhan 430071;

Center for Cold Atom Physics, Chinese Academy of Sciences, Wuhan 430071;

State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Wuhan Institute of Physics and Mathematics, Chinese Academy of Sciences, Wuhan 430071;

Center for Cold Atom Physics, Chinese Academy of Sciences, Wuhan 430071;

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收录信息中国科学引文数据库(CSCD);中国科技论文与引文数据库(CSTPCD);
原文格式 PDF
正文语种 chi
中图分类物理学;
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Directly Trapping Atoms in a U-Shaped Magneto-Optical Trap Using a Mini Atom Chip

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