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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 ...

  • 2023
  • electronicrdacarrier

Numbers

  • LIBRIS-ID:oai:research.chalmers.se:f2f12ef6-efd2-4ee7-83a2-e8074d6116d7
  • https://research.chalmers.se/publication/536984URI
  • https://doi.org/10.1103/PhysRevLett.131.043603DOI

Supplementary language notes

  • Language:English
  • Summary in:English

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  • Subject category:art swepub-publicationtype
  • Subject category:ref swepub-contenttype

Notes

  • 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

Added entries (persons, corporate bodies, meetings, titles ...)

  • Gross, R.Munich Center for Quantum Science and Technology (MCQST),Technische Universität München (TUM),Technical University of Munich (TUM) (author)
  • Higgins, Gerard,1989Chalmers tekniska högskola,Chalmers University of Technology,Osterreichische Akademie Der Wissenschaften(Swepub:cth)higgins (author)
  • Huebl, H.Munich Center for Quantum Science and Technology (MCQST),Technische Universität München (TUM),Technical University of Munich (TUM) (author)
  • Kieler, O. F.Physikalisch-Technische Bundesanstalt (PTB) (author)
  • Kleiner, R.Eberhard Karls Universität Tübingen,Eberhard Karls University of Tübingen (author)
  • Koelle, D.Eberhard Karls Universität Tübingen,Eberhard Karls University of Tübingen (author)
  • Schmidt, P.Osterreichische Akademie Der Wissenschaften (author)
  • Slater, J. A.Universität Wien,University of Vienna (author)
  • Trupke, M.Universität Wien,University of Vienna (author)
  • Uhl, K.Eberhard Karls Universität Tübingen,Eberhard Karls University of Tübingen (author)
  • Weimann, T.Physikalisch-Technische Bundesanstalt (PTB) (author)
  • Wieczorek, Witlef,1979Universität Wien,University of Vienna,Chalmers tekniska högskola,Chalmers University of Technology(Swepub:cth)witlef (author)
  • Aspelmeyer, M.Universität Wien,University of Vienna,Osterreichische Akademie Der Wissenschaften (author)
  • Universität WienOsterreichische Akademie Der Wissenschaften (creator_code:org_t)

Related titles

  • In:Physical Review Letters131:41079-71140031-9007

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