中国物理B ›› 2018, Vol. 27 ›› Issue (3): 30303-030303.doi: 10.1088/1674-1056/27/3/030303

• TOPIC REVIEW—Thermal and thermoelectric properties of nano materials • 上一篇    下一篇

Effect of Raman-pulse duration related to the magnetic field gradient in high-precision atom gravimeters

Yuan Cheng(程源), Yu-Jie Tan(谈玉杰), Min-Kang Zhou(周敏康), Xiao-Chun Duan(段小春), Cheng-Gang Shao(邵成刚), Zhong-Kun Hu(胡忠坤)   

  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
  • 收稿日期:2017-09-19 修回日期:2017-12-03 出版日期:2018-03-05 发布日期:2018-03-05
  • 通讯作者: Yu-Jie Tan, Zhong-Kun Hu E-mail:yjtan@hust.edu.cn;zkhu@hust.edu.cn
  • 基金资助:

    Project supported by the National Natural Science Foundation of China (Grant Nos. 11625417, 11727809, 11474115, 91636219, and 91636221) and the Post-doctoral Science Foundation of China (Grant No. 2017M620308).

Effect of Raman-pulse duration related to the magnetic field gradient in high-precision atom gravimeters

Yuan Cheng(程源), Yu-Jie Tan(谈玉杰), Min-Kang Zhou(周敏康), Xiao-Chun Duan(段小春), Cheng-Gang Shao(邵成刚), Zhong-Kun Hu(胡忠坤)   

  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
  • Received:2017-09-19 Revised:2017-12-03 Online:2018-03-05 Published:2018-03-05
  • Contact: Yu-Jie Tan, Zhong-Kun Hu E-mail:yjtan@hust.edu.cn;zkhu@hust.edu.cn
  • Supported by:

    Project supported by the National Natural Science Foundation of China (Grant Nos. 11625417, 11727809, 11474115, 91636219, and 91636221) and the Post-doctoral Science Foundation of China (Grant No. 2017M620308).

摘要:

The effect of the Raman-pulse duration related to the magnetic field gradient, as a systematic error, is playing an important role on evaluating the performance of high-precision atomic gravimeters. We study this effect with a simplified theoretical model of the time-propagation operator. According to the typical parameters, we find that this effect should be taken into account when the gravimeter reaches an accuracy of 10-10g, and the larger the pulse duration is, the more obvious the systematic effect will be. Finally, we make a simple discussion on the possibility of testing this effect.

关键词: atom gravimeters, magnetic field gradient, Raman-pulse duration, time-propagation operator

Abstract:

The effect of the Raman-pulse duration related to the magnetic field gradient, as a systematic error, is playing an important role on evaluating the performance of high-precision atomic gravimeters. We study this effect with a simplified theoretical model of the time-propagation operator. According to the typical parameters, we find that this effect should be taken into account when the gravimeter reaches an accuracy of 10-10g, and the larger the pulse duration is, the more obvious the systematic effect will be. Finally, we make a simple discussion on the possibility of testing this effect.

Key words: atom gravimeters, magnetic field gradient, Raman-pulse duration, time-propagation operator

中图分类号:  (Atom and neutron interferometry)

  • 03.75.Dg
37.25.+k (Atom interferometry techniques) 32.60.+i (Zeeman and Stark effects)