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High- Q Magnetic Le...
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Hofer, J.Universität Wien,University of Vienna,Osterreichische Akademie Der Wissenschaften
(author)
High- Q Magnetic Levitation and Control of Superconducting Microspheres at Millikelvin Temperatures
- Article/chapterEnglish2023
Publisher, publication year, extent ...
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2023
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electronicrdacarrier
Numbers
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LIBRIS-ID:oai:research.chalmers.se:f2f12ef6-efd2-4ee7-83a2-e8074d6116d7
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https://research.chalmers.se/publication/536984URI
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https://doi.org/10.1103/PhysRevLett.131.043603DOI
Supplementary language notes
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Language:English
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Summary in:English
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Subject category:art swepub-publicationtype
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Subject category:ref swepub-contenttype
Notes
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We report the levitation of a superconducting lead-tin sphere with 100 μm diameter (corresponding to a mass of 5.6 μg) in a static magnetic trap formed by two coils in an anti-Helmholtz configuration, with adjustable resonance frequencies up to 240 Hz. The center-of-mass motion of the sphere is monitored magnetically using a dc superconducting quantum interference device as well as optically and exhibits quality factors of up to 2.6×107. We also demonstrate 3D magnetic feedback control of the motion of the sphere. The setup is housed in a dilution refrigerator operating at 15 mK. By implementing a cryogenic vibration isolation system, we can attenuate environmental vibrations at 200 Hz by approximately 7 orders of magnitude. The combination of low temperature, large mass, and high quality factor provides a promising platform for testing quantum physics in previously unexplored regimes with high mass and long coherence times.
Subject headings and genre
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Gross, R.Munich Center for Quantum Science and Technology (MCQST),Technische Universität München (TUM),Technical University of Munich (TUM)
(author)
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Higgins, Gerard,1989Chalmers tekniska högskola,Chalmers University of Technology,Osterreichische Akademie Der Wissenschaften(Swepub:cth)higgins
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Huebl, H.Munich Center for Quantum Science and Technology (MCQST),Technische Universität München (TUM),Technical University of Munich (TUM)
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Kieler, O. F.Physikalisch-Technische Bundesanstalt (PTB)
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Kleiner, R.Eberhard Karls Universität Tübingen,Eberhard Karls University of Tübingen
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Koelle, D.Eberhard Karls Universität Tübingen,Eberhard Karls University of Tübingen
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Schmidt, P.Osterreichische Akademie Der Wissenschaften
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Slater, J. A.Universität Wien,University of Vienna
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Trupke, M.Universität Wien,University of Vienna
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Uhl, K.Eberhard Karls Universität Tübingen,Eberhard Karls University of Tübingen
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Weimann, T.Physikalisch-Technische Bundesanstalt (PTB)
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Wieczorek, Witlef,1979Universität Wien,University of Vienna,Chalmers tekniska högskola,Chalmers University of Technology(Swepub:cth)witlef
(author)
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Aspelmeyer, M.Universität Wien,University of Vienna,Osterreichische Akademie Der Wissenschaften
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Universität WienOsterreichische Akademie Der Wissenschaften
(creator_code:org_t)
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In:Physical Review Letters131:41079-71140031-9007
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Hofer, J.
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Gross, R.
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Higgins, Gerard, ...
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Huebl, H.
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Kieler, O. F.
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Kleiner, R.
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Koelle, D.
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Schmidt, P.
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Slater, J. A.
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Trupke, M.
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Uhl, K.
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Weimann, T.
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Wieczorek, Witle ...
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Aspelmeyer, M.
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Chalmers University of Technology