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

authored by: 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
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.
Organisation(s): Institute of Quantum Optics
QuantumFrontiers
CRC 1227 Designed Quantum States of Matter (DQ-mat)
External Organisation(s): IMEDCO AG
Ulm University
Technical University of Munich (TUM)
Type: Article
Journal: Review of scientific instruments
Volume: 91
ISSN: 0034-6748
Publication date: 19.03.2020
Publication status: Published
Peer reviewed: Yes
ASJC Scopus subject areas: Instrumentation
Electronic version(s): https://doi.org/10.1063/1.5141340 (Access: Open)

BibTeX

@article{aae0c6260a6a45599be6d5a15a3b01a9,
title = "A scalable high-performance magnetic shield for very long baseline atom interferometry",
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.",
author = "E. Wodey and D. Tell and Rasel, {E. M.} and D. Schlippert and R. Baur and U. Kissling and B. K{\"o}lliker and M. Lorenz and M. Marrer and U. Schl{\"a}pfer and M. Widmer and C. Ufrecht and S. Stuiber and P. Fierlinger",
note = "The Hannover Very Long Baseline Atom Interferometry facility is a major research facility funded by the German Research Foundation (Deutsche Forschungsgemeinschaft, DFG). This work was supported by the Collaborative Research Centers 1128 “geo-Q” (Project No. A02) and 1227 “DQ-mat” (Project No. B07), and Germany{\textquoteright}s Excellence Strategy within EXC-2123 “QuantumFrontiers” (Project No. 390837967). D.S. acknowledges funding from the German Federal Ministry of Education and Research (BMBF) through the funding program Photonics Research Germany (Contract No. 13N14875). E.W. acknowledges support from “Nieders{\"a}chsisches Vorab” through the “Quantum- and Nano-Metrology (QUANOMET)” initiative (Project No. QT3 - 51170991). S.S. and P.F. acknowledge support from EXC-153 “Origin and Structure of the Universe” (Project No. 24799710). The work of C.U. was supported by the German Aerospace Center (DLR) with funds provided by the Federal Ministry for Economic Affairs and Energy (BMWi) due to an enactment of the German Bundestag under Grant Nos. DLR 50WM1556 and 50WM1956. E.W., D.T., E.M.R., and D.S. thank I. Fan and A. Schnabel for valuable insight at the beginning of the project. E.W. thanks T. Wendrich, K. M. Knaak, T. Hensel, and T. Rehmert for logistics help and the loan of measurement equipment.",
year = "2020",
month = mar,
day = "19",
doi = "10.1063/1.5141340",
language = "English",
volume = "91",
journal = "Review of scientific instruments",
issn = "0034-6748",
publisher = "American Institute of Physics",
number = "3",
}