中国物理B ›› 2021, Vol. 30 ›› Issue (7): 73701-073701.doi: 10.1088/1674-1056/abf91f

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Simulation and experiment of the cooling effect of trapped ion by pulsed laser

Chang-Da-Ren Fang(方长达人)1,2,3, Yao Huang(黄垚)1,2, Hua Guan(管桦)1,2, Yuan Qian(钱源)1,2,3, and Ke-Lin Gao(高克林)1,2,†   

  1. 1 State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Sciences, Wuhan 430071, China;
    2 Key Laboratory of Atomic Frequency Standards, Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Sciences, Wuhan 430071, China;
    3 School of Physical Sciences, University of Chinese Academy of Sciences, Beijing 100049, China
  • 收稿日期:2021-03-08 修回日期:2021-04-13 接受日期:2021-04-19 出版日期:2021-06-22 发布日期:2021-06-22
  • 通讯作者: Ke-Lin Gao E-mail:klgao@apm.ac.cn
  • 基金资助:
    Project supported by the National Key Research and Development Program of China (Grant No. 2017YFA0304401), the National Development Project for Major Scientific Research Facility, China (Grant No. ZDYZ2012-2), the National Natural Science Foundation of China (Grant Nos. 11774388 and 11634013), the Strategic Priority Research Program of the Chinese Academy of Sciences (Grant No. XDB21030100), the CAS Youth Innovation Promotion Association (Grant Nos. 2018364 and Y201963), and the K. C. Wong Education Foundation (Grant No. GJTD-2019-15).

Simulation and experiment of the cooling effect of trapped ion by pulsed laser

Chang-Da-Ren Fang(方长达人)1,2,3, Yao Huang(黄垚)1,2, Hua Guan(管桦)1,2, Yuan Qian(钱源)1,2,3, and Ke-Lin Gao(高克林)1,2,†   

  1. 1 State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Sciences, Wuhan 430071, China;
    2 Key Laboratory of Atomic Frequency Standards, Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Sciences, Wuhan 430071, China;
    3 School of Physical Sciences, University of Chinese Academy of Sciences, Beijing 100049, China
  • Received:2021-03-08 Revised:2021-04-13 Accepted:2021-04-19 Online:2021-06-22 Published:2021-06-22
  • Contact: Ke-Lin Gao E-mail:klgao@apm.ac.cn
  • Supported by:
    Project supported by the National Key Research and Development Program of China (Grant No. 2017YFA0304401), the National Development Project for Major Scientific Research Facility, China (Grant No. ZDYZ2012-2), the National Natural Science Foundation of China (Grant Nos. 11774388 and 11634013), the Strategic Priority Research Program of the Chinese Academy of Sciences (Grant No. XDB21030100), the CAS Youth Innovation Promotion Association (Grant Nos. 2018364 and Y201963), and the K. C. Wong Education Foundation (Grant No. GJTD-2019-15).

摘要: We investigate the process of pulsed laser cooling using a self-constructed molecular dynamics simulation (MD-Simulation) program. We simulate the Doppler cooling process and pulsed laser Doppler cooling process of a single 40Ca+ ion, and the comparison with the experimental results shows that this self-constructed MD-Simulation program works well in the weak laser intensity situation. Furthermore, we analyze the pulsed laser Doppler cooling process of a single 27Al+ ion. This program can be used to analyze the molecular dynamic process of various situations of Doppler cooling in an ion trap, which could give predictions and experimental guidance.

关键词: doppler cooling, pulsed laser cooling, molecular dynamics simulation

Abstract: We investigate the process of pulsed laser cooling using a self-constructed molecular dynamics simulation (MD-Simulation) program. We simulate the Doppler cooling process and pulsed laser Doppler cooling process of a single 40Ca+ ion, and the comparison with the experimental results shows that this self-constructed MD-Simulation program works well in the weak laser intensity situation. Furthermore, we analyze the pulsed laser Doppler cooling process of a single 27Al+ ion. This program can be used to analyze the molecular dynamic process of various situations of Doppler cooling in an ion trap, which could give predictions and experimental guidance.

Key words: doppler cooling, pulsed laser cooling, molecular dynamics simulation

中图分类号:  (Mechanical effects of light on atoms, molecules, and ions)

  • 37.10.Vz
87.10.Tf (Molecular dynamics simulation)