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High- Q Magnetic Le...
High- Q Magnetic Levitation and Control of Superconducting Microspheres at Millikelvin Temperatures
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- Hofer, J. (author)
- Universität Wien,University of Vienna,Osterreichische Akademie Der Wissenschaften
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- Gross, R. (author)
- Munich Center for Quantum Science and Technology (MCQST),Technische Universität München (TUM),Technical University of Munich (TUM)
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- Higgins, Gerard, 1989 (author)
- Chalmers tekniska högskola,Chalmers University of Technology,Osterreichische Akademie Der Wissenschaften
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- Huebl, H. (author)
- Munich Center for Quantum Science and Technology (MCQST),Technische Universität München (TUM),Technical University of Munich (TUM)
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- Kieler, O. F. (author)
- Physikalisch-Technische Bundesanstalt (PTB)
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- Kleiner, R. (author)
- Eberhard Karls Universität Tübingen,Eberhard Karls University of Tübingen
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- Koelle, D. (author)
- Eberhard Karls Universität Tübingen,Eberhard Karls University of Tübingen
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- Schmidt, P. (author)
- Osterreichische Akademie Der Wissenschaften
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- Slater, J. A. (author)
- Universität Wien,University of Vienna
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- Trupke, M. (author)
- Universität Wien,University of Vienna
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- Uhl, K. (author)
- Eberhard Karls Universität Tübingen,Eberhard Karls University of Tübingen
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- Weimann, T. (author)
- Physikalisch-Technische Bundesanstalt (PTB)
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- Wieczorek, Witlef, 1979 (author)
- Universität Wien,University of Vienna,Chalmers tekniska högskola,Chalmers University of Technology
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- Aspelmeyer, M. (author)
- Universität Wien,University of Vienna,Osterreichische Akademie Der Wissenschaften
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(creator_code:org_t)
- 2023
- 2023
- English.
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In: Physical Review Letters. - 1079-7114 .- 0031-9007. ; 131:4
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Abstract
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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
- NATURVETENSKAP -- Fysik -- Den kondenserade materiens fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Condensed Matter Physics (hsv//eng)
Publication and Content Type
- art (subject category)
- ref (subject category)
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- By the author/editor
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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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show more...
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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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show less...
- About the subject
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Physical Science ...
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and Condensed Matter ...
- Articles in the publication
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Physical Review ...
- By the university
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Chalmers University of Technology