Efficient loading of cesium atoms in a magnetic levitated dimple trap

doi:10.1088/1674-1056/ad0b03

中国物理B ›› 2024, Vol. 33 ›› Issue (2): 23702-023702.doi: 10.1088/1674-1056/ad0b03

Efficient loading of cesium atoms in a magnetic levitated dimple trap

Guoqing Zhang(张国庆)¹, Guosheng Feng(冯国胜)², Yuqing Li(李玉清)^1,3,†, Jizhou Wu(武寄洲)^1,3,‡, and Jie Ma(马杰)^1,3

1 State Key Laboratory of Quantum Optics and Quantum Optics Devices, Institute of Laser Spectroscopy, College of Physics and Electronics Engineering, Shanxi University, Taiyuan 030006, China;
2 Department of Magnetic Resonance Imaging, The First Hospital of Shanxi Medical University, Taiyuan 030006, China;
3 Collaborative Innovation Center of Extreme Optics, Shanxi University, Taiyuan 030006, China

收稿日期:2023-09-12 修回日期:2023-10-18 接受日期:2023-11-09 出版日期:2024-01-16 发布日期:2024-01-25
通讯作者: Yuqing Li, Jizhou Wu E-mail:lyqing.2006@163.com;wujz@sxu.edu.cn
基金资助:
This work was financially supported by the National Natural Science Foundation of China (Grant Nos. 62020106014, 62175140, 12034012, and 92165106), and the Natural Science Young Foundation of Shanxi Province (Grant No. 202203021212376).

Efficient loading of cesium atoms in a magnetic levitated dimple trap

Guoqing Zhang(张国庆)¹, Guosheng Feng(冯国胜)², Yuqing Li(李玉清)^1,3,†, Jizhou Wu(武寄洲)^1,3,‡, and Jie Ma(马杰)^1,3

1 State Key Laboratory of Quantum Optics and Quantum Optics Devices, Institute of Laser Spectroscopy, College of Physics and Electronics Engineering, Shanxi University, Taiyuan 030006, China;
2 Department of Magnetic Resonance Imaging, The First Hospital of Shanxi Medical University, Taiyuan 030006, China;
3 Collaborative Innovation Center of Extreme Optics, Shanxi University, Taiyuan 030006, China

Received:2023-09-12 Revised:2023-10-18 Accepted:2023-11-09 Online:2024-01-16 Published:2024-01-25
Contact: Yuqing Li, Jizhou Wu E-mail:lyqing.2006@163.com;wujz@sxu.edu.cn
Supported by:
This work was financially supported by the National Natural Science Foundation of China (Grant Nos. 62020106014, 62175140, 12034012, and 92165106), and the Natural Science Young Foundation of Shanxi Province (Grant No. 202203021212376).

摘要/Abstract

摘要： We report a detailed study of magnetically levitated loading of ultracold ¹³³Cs atoms in a dimple trap. The atomic sample was produced in a combined red-detuned optical dipole trap and dimple trap formed by two small waist beams crossing a horizontal plane. The magnetic levitation for the ¹³³Cs atoms forms an effective potential for a large number of atoms in a high spatial density. Dependence of the number of atoms loaded and trapped in the dimple trap on the magnetic field gradient and bias field is in good agreement with the theoretical analysis. This method has been widely used to obtain the Bose-Einstein condensation atoms for many atomic species.

关键词: ultracold atom, magnetic levitation, dimple trap

Abstract: We report a detailed study of magnetically levitated loading of ultracold ¹³³Cs atoms in a dimple trap. The atomic sample was produced in a combined red-detuned optical dipole trap and dimple trap formed by two small waist beams crossing a horizontal plane. The magnetic levitation for the ¹³³Cs atoms forms an effective potential for a large number of atoms in a high spatial density. Dependence of the number of atoms loaded and trapped in the dimple trap on the magnetic field gradient and bias field is in good agreement with the theoretical analysis. This method has been widely used to obtain the Bose-Einstein condensation atoms for many atomic species.

Key words: ultracold atom, magnetic levitation, dimple trap

中图分类号: (Atom, molecule, and ion cooling methods)

37.10.-x

37.10.Gh (Atom traps and guides)

Guoqing Zhang(张国庆), Guosheng Feng(冯国胜), Yuqing Li(李玉清), Jizhou Wu(武寄洲), and Jie Ma(马杰). Efficient loading of cesium atoms in a magnetic levitated dimple trap[J]. 中国物理B, 2024, 33(2): 23702-023702.

Guoqing Zhang(张国庆), Guosheng Feng(冯国胜), Yuqing Li(李玉清), Jizhou Wu(武寄洲), and Jie Ma(马杰). Efficient loading of cesium atoms in a magnetic levitated dimple trap[J]. Chin. Phys. B, 2024, 33(2): 23702-023702.

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Efficient loading of cesium atoms in a magnetic levitated dimple trap

Efficient loading of cesium atoms in a magnetic levitated dimple trap

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