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2018 Effect of Raman-pulse duration related to the magnetic field gradient in high-precision atom gravimeters

发布时间:2018-03-12          来源:           浏览次数:

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), and Zhong-Kun Hu(胡忠坤)?
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

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.



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