中国物理B ›› 2018, Vol. 27 ›› Issue (1): 13701-013701.doi: 10.1088/1674-1056/27/1/013701

• SPECIAL TOPIC—Non-equilibrium phenomena in soft matters • 上一篇    下一篇

Comparison of the sensitivities for atom interferometers in two different operation methods

Xiao-Chun Duan(段小春), De-Kai Mao(毛德凯), Xiao-Bing Deng(邓小兵), Min-Kang Zhou(周敏康), Cheng-Gang Shao(邵成刚), Zhu Zhu(祝竺), Zhong-Kun Hu(胡忠坤)   

  1. 1 MOE Key Laboratory of Fundamental Physical Quantities Measurements, Hubei Key Laboratory of Gravitation and Quantum Physics, School of Physics, Huazhong University of Science and Technology, Wuhan 430074, China;
    2 Shanghai Institute of Satellite Engineering, Shanghai 201109, China
  • 收稿日期:2017-08-03 修回日期:2017-09-20 出版日期:2018-01-05 发布日期:2018-01-05
  • 通讯作者: Zhong-Kun Hu E-mail:zkhu@hust.edu.cn
  • 基金资助:

    Project supported by the National Natural Science Foundation of China (Grant Nos. 41127002, 11574099, 41504034, and 11474115) and the National Basic Research Program of China (Grant No. 2010CB832806).

Comparison of the sensitivities for atom interferometers in two different operation methods

Xiao-Chun Duan(段小春)1, De-Kai Mao(毛德凯)1, Xiao-Bing Deng(邓小兵)1, Min-Kang Zhou(周敏康)1, Cheng-Gang Shao(邵成刚)1, Zhu Zhu(祝竺)2, Zhong-Kun Hu(胡忠坤)1   

  1. 1 MOE Key Laboratory of Fundamental Physical Quantities Measurements, Hubei Key Laboratory of Gravitation and Quantum Physics, School of Physics, Huazhong University of Science and Technology, Wuhan 430074, China;
    2 Shanghai Institute of Satellite Engineering, Shanghai 201109, China
  • Received:2017-08-03 Revised:2017-09-20 Online:2018-01-05 Published:2018-01-05
  • Contact: Zhong-Kun Hu E-mail:zkhu@hust.edu.cn
  • Supported by:

    Project supported by the National Natural Science Foundation of China (Grant Nos. 41127002, 11574099, 41504034, and 11474115) and the National Basic Research Program of China (Grant No. 2010CB832806).

摘要:

We investigated the sensitivities of atom interferometers in the usual fringe-scanning method (FSM) versus the fringe-locking method (FLM). The theoretical analysis shows that for typical noises in atom interferometers, the FSM will degrade the sensitivity while the FLM does not. The sensitivity-improvement factor of the FLM over the FSM depends on the type of noises, which is validated by numerical simulations. The detailed quantitative analysis on this fundamental issue is presented, and our analysis is readily extendable to other kinds of noises as well as other fringe shapes in addition to a cosine one.

关键词: atom interferometer, fringe locking, fringe scanning, sensitivity

Abstract:

We investigated the sensitivities of atom interferometers in the usual fringe-scanning method (FSM) versus the fringe-locking method (FLM). The theoretical analysis shows that for typical noises in atom interferometers, the FSM will degrade the sensitivity while the FLM does not. The sensitivity-improvement factor of the FLM over the FSM depends on the type of noises, which is validated by numerical simulations. The detailed quantitative analysis on this fundamental issue is presented, and our analysis is readily extendable to other kinds of noises as well as other fringe shapes in addition to a cosine one.

Key words: atom interferometer, fringe locking, fringe scanning, sensitivity

中图分类号:  (Atom interferometry techniques)

  • 37.25.+k
07.05.Kf (Data analysis: algorithms and implementation; data management)