中国物理B ›› 2017, Vol. 26 ›› Issue (4): 43702-043702.doi: 10.1088/1674-1056/26/4/043702

• ATOMIC AND MOLECULAR PHYSICS • 上一篇    下一篇

Common-mode noise rejection using fringe-locking method in WEP test by simultaneous dual-species atom interferometers

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

  1. MOE Key Laboratory of Fundamental Physical Quantities Measurements, School of Physics, Huazhong University of Science and Technology, Wuhan 430074, China
  • 收稿日期:2016-11-15 修回日期:2017-01-25 出版日期:2017-04-05 发布日期:2017-04-05
  • 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, and 11474115) and the National Basic Research Program of China (Grant No. 2010CB832806).

Common-mode noise rejection using fringe-locking method in WEP test by simultaneous dual-species atom interferometers

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

  1. MOE Key Laboratory of Fundamental Physical Quantities Measurements, School of Physics, Huazhong University of Science and Technology, Wuhan 430074, China
  • Received:2016-11-15 Revised:2017-01-25 Online:2017-04-05 Published:2017-04-05
  • 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, and 11474115) and the National Basic Research Program of China (Grant No. 2010CB832806).

摘要: We theoretically investigate the application of the fringe-locking method (FLM) in the dual-species quantum test of the weak equivalence principle (WEP). With the FLM, the measurement is performed invariably at the midfringe, and the extraction of the phase shift for atom interferometers is linearized. For the simultaneous interferometers, this linearization enables a good common-mode rejection of vibration noise, which is usually the main limit for high precision WEP tests of the dual-species kind. We note that this method also allows for an unbiased determination of the gravity accelerations difference, which meanwhile is ready to be implemented.

关键词: weak equivalence principle, dual-species atom interferometers, fringe locking, vibration noise rejection

Abstract: We theoretically investigate the application of the fringe-locking method (FLM) in the dual-species quantum test of the weak equivalence principle (WEP). With the FLM, the measurement is performed invariably at the midfringe, and the extraction of the phase shift for atom interferometers is linearized. For the simultaneous interferometers, this linearization enables a good common-mode rejection of vibration noise, which is usually the main limit for high precision WEP tests of the dual-species kind. We note that this method also allows for an unbiased determination of the gravity accelerations difference, which meanwhile is ready to be implemented.

Key words: weak equivalence principle, dual-species atom interferometers, fringe locking, vibration noise rejection

中图分类号:  (Atom interferometry techniques)

  • 37.25.+k
04.80.-y (Experimental studies of gravity) 03.75.Dg (Atom and neutron interferometry) 04.20.Cv (Fundamental problems and general formalism)