中国物理B ›› 2020, Vol. 29 ›› Issue (8): 83303-083303.doi: 10.1088/1674-1056/ab9611

• SPECIAL TOPIC—Ultracold atom and its application in precision measurement • 上一篇    下一篇

Enhancement of the photoassociation of ultracold atoms via a non-resonant magnetic field

Ji-Zhou Wu(武寄洲), Yu-Qing Li(李玉清), Wen-Liang Liu(刘文良), Peng Li(李鹏), Xiao-Feng Wang(王晓锋), Peng Chen(陈鹏), Jie Ma(马杰), Lian-Tuan Xiao(肖连团), Suo-Tang Jia(贾锁堂)   

  1. 1 State Key Laboratory of Quantum Optics and Quantum Optics Devices, Institute of Laser Spectroscopy, Shanxi University, Taiyuan 030006, China;
    2 Collaborative Innovation Center of Extreme Optics, Shanxi University, Taiyuan 030006, China;
    3 College of Physics and Electronics Engineering, Shanxi University, Taiyuan 030006, China
  • 收稿日期:2020-04-20 修回日期:2020-05-15 出版日期:2020-08-05 发布日期:2020-08-05
  • 通讯作者: Yu-Qing Li E-mail:lyqing2006@sxu.edu.cn
  • 基金资助:

    Project supported by the National Key Research and Development Program of China (Grant No. 2017YFA0304203), the National Natural Science Foundation of China (Grant Nos. 61722507, 61675121, and 61705123), PCSIRT, China (Grant No. IRT17R70), 111 Project, China (Grant No. D18001), the Program for the Outstanding Innovative Teams of Higher Learning Institutions of Shanxi (OIT), China, the Applied Basic Research Project of Shanxi Province, China (Grant Nos. 201801D221004, 201901D211191, and 201901D211188), the Shanxi 1331 KSC, and Collaborative Grant by the Russian Foundation for Basic Research and the National Natural Science Foundation of China (Grant Nos. 6191101339 and 20-53-53025 in the RFBR classification).

Enhancement of the photoassociation of ultracold atoms via a non-resonant magnetic field

Ji-Zhou Wu(武寄洲)1,2, Yu-Qing Li(李玉清)1,2, Wen-Liang Liu(刘文良)1,2, Peng Li(李鹏)3, Xiao-Feng Wang(王晓锋)1, Peng Chen(陈鹏)1, Jie Ma(马杰)1,2,3, Lian-Tuan Xiao(肖连团)1,2, Suo-Tang Jia(贾锁堂)1,2   

  1. 1 State Key Laboratory of Quantum Optics and Quantum Optics Devices, Institute of Laser Spectroscopy, Shanxi University, Taiyuan 030006, China;
    2 Collaborative Innovation Center of Extreme Optics, Shanxi University, Taiyuan 030006, China;
    3 College of Physics and Electronics Engineering, Shanxi University, Taiyuan 030006, China
  • Received:2020-04-20 Revised:2020-05-15 Online:2020-08-05 Published:2020-08-05
  • Contact: Yu-Qing Li E-mail:lyqing2006@sxu.edu.cn
  • Supported by:

    Project supported by the National Key Research and Development Program of China (Grant No. 2017YFA0304203), the National Natural Science Foundation of China (Grant Nos. 61722507, 61675121, and 61705123), PCSIRT, China (Grant No. IRT17R70), 111 Project, China (Grant No. D18001), the Program for the Outstanding Innovative Teams of Higher Learning Institutions of Shanxi (OIT), China, the Applied Basic Research Project of Shanxi Province, China (Grant Nos. 201801D221004, 201901D211191, and 201901D211188), the Shanxi 1331 KSC, and Collaborative Grant by the Russian Foundation for Basic Research and the National Natural Science Foundation of China (Grant Nos. 6191101339 and 20-53-53025 in the RFBR classification).

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摘要：

We report an effective method for enhancing the photoassociation of ultracold atoms using a non-resonant magnetic field, which enables the manipulation of the coupling between the wavefunctions of the colliding atomic pairs and the excited molecules. A series of photoassociation spectra are measured for different magnetic fields. We show that the photoassociation rate is significantly dependent on the non-resonant magnetic field. A qualitatively theoretical explanation is provided, and shows a good agreement with the experimental result.

关键词: photoassociation, ultracold atoms, magnetic field

Abstract:

We report an effective method for enhancing the photoassociation of ultracold atoms using a non-resonant magnetic field, which enables the manipulation of the coupling between the wavefunctions of the colliding atomic pairs and the excited molecules. A series of photoassociation spectra are measured for different magnetic fields. We show that the photoassociation rate is significantly dependent on the non-resonant magnetic field. A qualitatively theoretical explanation is provided, and shows a good agreement with the experimental result.

Key words: photoassociation, ultracold atoms, magnetic field

中图分类号:  (Rotational analysis)

  • 33.20.Sn
34.50.-s (Scattering of atoms and molecules)