Micro-Gal level gravity measurements with cold atom interferometry

Zhou Min-Kang(周敏康), Duan Xiao-Chun(段小春), Chen Le-Le(陈乐乐),
Luo Qin(罗覃), Xu Yao-Yao(徐耀耀), and Hu Zhong-Kun(胡忠坤)†

MOE Key Laboratory of Fundamental Physical Quantities Measurements, School of Physics,
Huazhong University of Science and Technology, Wuhan430074, China

(Received 13 February 2015; revised manuscript received 19 March 2015; published online 27 March 2015)

Developments of the micro-Gal level gravimeter based on atom interferometry are reviewed, and the recent progress
and results of our group are also presented. Atom interferometric gravimeters have shown high resolution and accuracy
for gravity measurements. This kind of quantum sensor has excited world-wide interest for both practical applications and
fundamental research.

Keywords:gravity measurements, atom interferometer, laser cooling and trapping, precision measurements

PACS:04.80.–y, 03.75.Dg, 37.10.–x, 06.20.–f   DOI:10.1088/1674-1056/24/5/050401

Chin. Phys. B Vol. 24, No. 5 (2015) 050401

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