A scalable high-performance magnetic shield for very long baseline atom interferometry

E. Wodey; D. Tell; E. M. Rasel; D. Schlippert; R. Baur; U. Kissling; B. Kölliker; M. Lorenz; M. Marrer; U. Schläpfer; M. Widmer; C. Ufrecht; S. Stuiber; P. Fierlinger

doi:10.1063/1.5141340

A scalable high-performance magnetic shield for very long baseline atom interferometry

E. Wodey
, D. Tell
, E. M. Rasel
, D. Schlippert
, R. Baur
, U. Kissling
, B. Kölliker
, M. Lorenz
, M. Marrer
, U. Schläpfer
, M. Widmer
, C. Ufrecht
, S. Stuiber
, P. Fierlinger

Chair of Precision Measurements at Extreme Conditions

Leibniz Universität Hannover, Institut für Quantenoptik
IMEDCO AG
University of Ulm
Technical University of Munich

Research output: Contribution to journal › Article › peer-review

28 Scopus citations

Abstract

We report on the design, construction, and characterization of a 10 m-long high-performance magnetic shield for very long baseline atom interferometry. We achieve residual fields below 4 nT and longitudinal inhomogeneities below 2.5 nT/m over 8 m along the longitudinal direction. Our modular design can be extended to longer baselines without compromising the shielding performance. Such a setup constrains biases associated with magnetic field gradients to the sub-pm/s² level in atomic matterwave accelerometry with rubidium atoms and paves the way toward tests of the universality of free fall with atomic test masses beyond the 10^-13 level.

Original language	English
Article number	5141340
Journal	Review of Scientific Instruments
Volume	91
Issue number	3
DOIs	https://doi.org/10.1063/1.5141340
State	Published - 1 Mar 2020

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10.1063/1.5141340

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Wodey, E., Tell, D., Rasel, E. M., Schlippert, D., Baur, R., Kissling, U., Kölliker, B., Lorenz, M., Marrer, M., Schläpfer, U., Widmer, M., Ufrecht, C., Stuiber, S., & Fierlinger, P. (2020). A scalable high-performance magnetic shield for very long baseline atom interferometry. Review of Scientific Instruments, 91(3), Article 5141340. https://doi.org/10.1063/1.5141340

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AU - Kissling, U.

AU - Kölliker, B.

AU - Lorenz, M.

AU - Marrer, M.

AU - Schläpfer, U.

AU - Widmer, M.

AU - Ufrecht, C.

AU - Stuiber, S.

AU - Fierlinger, P.

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AB - We report on the design, construction, and characterization of a 10 m-long high-performance magnetic shield for very long baseline atom interferometry. We achieve residual fields below 4 nT and longitudinal inhomogeneities below 2.5 nT/m over 8 m along the longitudinal direction. Our modular design can be extended to longer baselines without compromising the shielding performance. Such a setup constrains biases associated with magnetic field gradients to the sub-pm/s2 level in atomic matterwave accelerometry with rubidium atoms and paves the way toward tests of the universality of free fall with atomic test masses beyond the 10-13 level.

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A scalable high-performance magnetic shield for very long baseline atom interferometry

Abstract

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