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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 |
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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.
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Received: 12 September 2023
Revised: 18 October 2023
Accepted manuscript online: 09 November 2023
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PACS:
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37.10.-x
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(Atom, molecule, and ion cooling methods)
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37.10.Gh
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(Atom traps and guides)
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| Fund: 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). |
Corresponding Authors:
Yuqing Li, Jizhou Wu
E-mail: lyqing.2006@163.com;wujz@sxu.edu.cn
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Cite this article:
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 2024 Chin. Phys. B 33 023702
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