Portable atomic gravimeter operating in noisy urban environments

Bin Chen; Jinbao Long; Hongtai Xie; Chenyang Li; Luokan Chen; Bonan Jiang; Shuai Chen

doi:10.3788/COL202018.090201

Journals >Chinese Optics Letters >Volume 18 >Issue 9 >Page 090201 > Article

Chinese Optics Letters
Vol. 18, Issue 9, 090201 (2020)

Portable atomic gravimeter operating in noisy urban environments | Editors' Pick

Bin Chen^1、2、3, Jinbao Long^1、2、3, Hongtai Xie^1、2、3, Chenyang Li^1、2、3, Luokan Chen^1、2、3, Bonan Jiang^1、2、3, and Shuai Chen^{1、2、3、*}

Author Affiliations

¹Hefei National Laboratory for Physical Sciences at the Microscale and Department of Modern Physics, University of Science and Technology of China, Hefei 230026, China

²Shanghai Branch, CAS Center for Excellence in Quantum Information and Quantum Physics, University of Science and Technology of China, Shanghai 201315, China

³Shanghai Research Center for Quantum Sciences, Shanghai 201315, China

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DOI: 10.3788/COL202018.090201 Cite this Article Set citation alerts

Bin Chen, Jinbao Long, Hongtai Xie, Chenyang Li, Luokan Chen, Bonan Jiang, Shuai Chen. Portable atomic gravimeter operating in noisy urban environments[J]. Chinese Optics Letters, 2020, 18(9): 090201 Copy Citation Text

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Abstract

The gravimeter based on atom interferometry has potential wide applications on building gravity networks and geophysics as well as gravity assisted navigation. Here, we demonstrate experimentally a portable atomic gravimeter operating in the noisy urban environment. Despite the influence of noisy external vibrations, our portable atomic gravimeter reaches a sensitivity as good as

65 μ Gal / \sqrt{Hz}

and a resolution of 1.1 μGal after 4000 s integration, being comparable to state-of-the-art atomic gravimeters. Our achievement paves the way for bringing the portable atomic gravimeter to field applications.

Keywords

atomic gravimeter noisy environment

P = a + b \cos [({\vec{k}}_{eff} \cdot \vec{g} - 2 π α) T^{2}],

(1)

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| {\vec{k}}_{eff} | g T^{2} - 2 π α_{0 u} T^{2} + Δ Φ_{dep} + Δ Φ_{ind} = 0, - | {\vec{k}}_{eff} | g T^{2} - 2 π (- α_{0 d}) T^{2} - Δ Φ_{dep} + Δ Φ_{ind} = 0,

(2)

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g = \frac{π (α_{0 u} + α_{0 d})}{| {\vec{k}}_{eff} |} - \frac{Δ Φ_{dep}}{| {\vec{k}}_{eff} | T^{2}} .

(3)

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σ_{g} = \frac{π}{| {\vec{k}}_{eff} |} \sqrt{σ_{α_{0 u}}^{2} + σ_{α_{0 d}}^{2}} \approx 7.2 μ Gal,

(4)

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Bin Chen, Jinbao Long, Hongtai Xie, Chenyang Li, Luokan Chen, Bonan Jiang, Shuai Chen. Portable atomic gravimeter operating in noisy urban environments[J]. Chinese Optics Letters, 2020, 18(9): 090201

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