Jul 17 – 22, 2022
Royal Conservatory of Music, Toronto
America/Toronto timezone

Progress on a portable, high-stability atom-interferometer gyroscope for dynamic rotation measurements

Not scheduled
1h 30m
Abstract of recent or ongoing work (by remote / virtual participant) Quantum information: gates, sensing, communication, and thermodynamics Abstracts by remote participants

Description

Abstract: The atom-interferometer gyroscope has been proven to be a promising tool for high-precision rotation measurements, and it will have important applications in fields of fundamental physics, geophysics, and inertia navigation. Here, we present the recent progress of our atom-interferometer gyroscope. First, with a compact atom-interferometer gyroscope, we demonstrated the rotation sensitive property in a dynamic rotating frame [1]. Then, to improve the sensitivity, we applied three pairs of separated Raman beams to build dual large-area interference loops, and developed a self-calibrated method of atomic trajectories in dual atomic interference loops to suppress the common noise [2]. Finally, we realize a portable, large-area dual-atom-interferometer gyroscope with a long-term stability of 9.5×10$^{-10}$ rad/s [3]. The device is compact and portable, and it was transported to Beijing from Wuhan over 1200 km. Benefit from the compact laser system and physical chamber, our atom-interferometer gyroscope reveals a high stability and a robust property even after a long-distance transport, and it demonstrates an excellent performance in two locations.

References:
[1] Z. W. Yao, S. B. Lu, R. B. Li, K. Wang, L. Cao, J. Wang, and M. S. Zhan, Continuous dynamic rotation measurements using a compact cold atom gyroscope, Chin. Phys. Lett. 33, 083701 (2016)
[2] Z. W. Yao, S. B. Lu, R. B. Li, J. Luo, J. Wang, and M. S. Zhan, Calibration of atomic trajectories in a large-area dual-atom-interferometer gyroscope, Physical Review A, 97, 013620 (2018)
[3] Z. W. Yao, H. H. Chen, S. B. Lu, R. B. Li, Z. X. Lu, X. L. Chen, G. H. Yu, M. Jiang, C. Sun, W. T. Ni, J. Wang, and M. S. Zhan, Self-alignment of a large-area dual-atom- interferometer gyroscope using parameter-decoupled phase-seeking calibrations. Phys. Rev. A 103, 023319 (2021).

Presenter name Zhanwei Yao
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Primary authors

Dr Honghui Chen ( Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Sciences, Wuhan 430071, China) Zhanwei Yao (Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Sciences, Wuhan 430071, China) Zexi Lu (Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Sciences, Wuhan 430071, China) Yinfei Mao (Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Sciences, Wuhan 430071, China) Sibin Lu (Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Sciences, Wuhan 430071, China) Min Jiang (Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Sciences, Wuhan 430071, China) Shaokang Li (Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Sciences, Wuhan 430071, China) Runbing Li (Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Sciences, Wuhan 430071, China) Jin Wang (Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Sciences, Wuhan 430071, China) Mingsheng Zhan (Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Sciences, Wuhan 430071, China)

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