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Wodey E, Tell D, Rasel EM, Schlippert D, Baur R, Kissling U, Kölliker B, Lorenz M, Marrer M, Schläpfer U, Widmer M, Ufrecht C, Stuiber S, Fierlinger P. A scalable high-performance magnetic shield for very long baseline atom interferometry. Rev Sci Instrum 2020; 91:035117. [PMID: 32259974 DOI: 10.1063/1.5141340] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/04/2019] [Accepted: 03/03/2020] [Indexed: 06/11/2023]
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.
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Affiliation(s)
- E Wodey
- Leibniz Universität Hannover, Institut für Quantenoptik, Welfengarten 1, 30167 Hannover, Germany
| | - D Tell
- Leibniz Universität Hannover, Institut für Quantenoptik, Welfengarten 1, 30167 Hannover, Germany
| | - E M Rasel
- Leibniz Universität Hannover, Institut für Quantenoptik, Welfengarten 1, 30167 Hannover, Germany
| | - D Schlippert
- Leibniz Universität Hannover, Institut für Quantenoptik, Welfengarten 1, 30167 Hannover, Germany
| | - R Baur
- IMEDCO AG, Industriestrasse West 14, 4614 Hägendorf, Switzerland
| | - U Kissling
- IMEDCO AG, Industriestrasse West 14, 4614 Hägendorf, Switzerland
| | - B Kölliker
- IMEDCO AG, Industriestrasse West 14, 4614 Hägendorf, Switzerland
| | - M Lorenz
- IMEDCO AG, Industriestrasse West 14, 4614 Hägendorf, Switzerland
| | - M Marrer
- IMEDCO AG, Industriestrasse West 14, 4614 Hägendorf, Switzerland
| | - U Schläpfer
- IMEDCO AG, Industriestrasse West 14, 4614 Hägendorf, Switzerland
| | - M Widmer
- IMEDCO AG, Industriestrasse West 14, 4614 Hägendorf, Switzerland
| | - C Ufrecht
- Universität Ulm, Institut für Quantenphysik and Center for Integrated Quantum Science and Technology (IQ), Albert-Einstein-Allee 11, 89069 Ulm, Germany
| | - S Stuiber
- Technische Universität München, Physikdepartment, 85748 Garching, Germany
| | - P Fierlinger
- Technische Universität München, Physikdepartment, 85748 Garching, Germany
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Loriani S, Friedrich A, Ufrecht C, Di Pumpo F, Kleinert S, Abend S, Gaaloul N, Meiners C, Schubert C, Tell D, Wodey É, Zych M, Ertmer W, Roura A, Schlippert D, Schleich WP, Rasel EM, Giese E. Interference of clocks: A quantum twin paradox. Sci Adv 2019; 5:eaax8966. [PMID: 31620559 PMCID: PMC6777965 DOI: 10.1126/sciadv.aax8966] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/03/2019] [Accepted: 09/09/2019] [Indexed: 06/10/2023]
Abstract
The phase of matter waves depends on proper time and is therefore susceptible to special-relativistic (kinematic) and gravitational (redshift) time dilation. Hence, it is conceivable that atom interferometers measure general-relativistic time-dilation effects. In contrast to this intuition, we show that (i) closed light-pulse interferometers without clock transitions during the pulse sequence are not sensitive to gravitational time dilation in a linear potential. (ii) They can constitute a quantum version of the special-relativistic twin paradox. (iii) Our proposed experimental geometry for a quantum-clock interferometer isolates this effect.
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Affiliation(s)
- Sina Loriani
- Institut für Quantenoptik, Leibniz Universität Hannover, Welfengarten 1, D-30167 Hannover, Germany
| | - Alexander Friedrich
- Institut für Quantenphysik and Center for Integrated Quantum Science and Technology (IQ), Universität Ulm, Albert-Einstein-Allee 11, D-89069 Ulm, Germany
| | - Christian Ufrecht
- Institut für Quantenphysik and Center for Integrated Quantum Science and Technology (IQ), Universität Ulm, Albert-Einstein-Allee 11, D-89069 Ulm, Germany
| | - Fabio Di Pumpo
- Institut für Quantenphysik and Center for Integrated Quantum Science and Technology (IQ), Universität Ulm, Albert-Einstein-Allee 11, D-89069 Ulm, Germany
| | - Stephan Kleinert
- Institut für Quantenphysik and Center for Integrated Quantum Science and Technology (IQ), Universität Ulm, Albert-Einstein-Allee 11, D-89069 Ulm, Germany
| | - Sven Abend
- Institut für Quantenoptik, Leibniz Universität Hannover, Welfengarten 1, D-30167 Hannover, Germany
| | - Naceur Gaaloul
- Institut für Quantenoptik, Leibniz Universität Hannover, Welfengarten 1, D-30167 Hannover, Germany
| | - Christian Meiners
- Institut für Quantenoptik, Leibniz Universität Hannover, Welfengarten 1, D-30167 Hannover, Germany
| | - Christian Schubert
- Institut für Quantenoptik, Leibniz Universität Hannover, Welfengarten 1, D-30167 Hannover, Germany
| | - Dorothee Tell
- Institut für Quantenoptik, Leibniz Universität Hannover, Welfengarten 1, D-30167 Hannover, Germany
| | - Étienne Wodey
- Institut für Quantenoptik, Leibniz Universität Hannover, Welfengarten 1, D-30167 Hannover, Germany
| | - Magdalena Zych
- Centre for Engineered Quantum Systems, School of Mathematics and Physics, The University of Queensland, St Lucia, QLD 4072, Australia
| | - Wolfgang Ertmer
- Institut für Quantenoptik, Leibniz Universität Hannover, Welfengarten 1, D-30167 Hannover, Germany
| | - Albert Roura
- Institut für Quantenphysik and Center for Integrated Quantum Science and Technology (IQ), Universität Ulm, Albert-Einstein-Allee 11, D-89069 Ulm, Germany
| | - Dennis Schlippert
- Institut für Quantenoptik, Leibniz Universität Hannover, Welfengarten 1, D-30167 Hannover, Germany
| | - Wolfgang P. Schleich
- Institut für Quantenphysik and Center for Integrated Quantum Science and Technology (IQ), Universität Ulm, Albert-Einstein-Allee 11, D-89069 Ulm, Germany
- Hagler Institute for Advanced Study and Department of Physics and Astronomy, Institute for Quantum Science and Engineering (IQSE), Texas A&M AgriLife Research, Texas A&M University, College Station, TX 77843-4242, USA
- Institute of Quantum Technologies, German Aerospace Center (DLR), D-89069 Ulm, Germany
| | - Ernst M. Rasel
- Institut für Quantenoptik, Leibniz Universität Hannover, Welfengarten 1, D-30167 Hannover, Germany
| | - Enno Giese
- Institut für Quantenphysik and Center for Integrated Quantum Science and Technology (IQ), Universität Ulm, Albert-Einstein-Allee 11, D-89069 Ulm, Germany
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Scherokman B, Filling-Katz MR, Tell D. Brachial plexus neuropathy following high-dose cytarabine in acute monoblastic leukemia. Cancer Treat Rep 1985; 69:1005-6. [PMID: 2992782] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
We describe brachial plexus neuropathy with high-dose cytarabine (Ara-C) therapy in a man who had acute monoblastic leukemia. Signs and symptoms of brachial plexus neuropathy appeared on two occasions within hours of exposure to high-dose Ara-C. Central nervous system complications have been described following systemic and intrathecal Ara-C. High-dose Ara-C has not been implicated previously as a cause of brachial plexus neuropathy.
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