High-Q magnetic levitation and control of superconducting microspheres at millikelvin temperatures

Joachim Hofer; R. Gross; Gerard Higgins; Hans Huebl; Oliver F. Kieler; Reinhold Kleiner; Dieter Koelle; Philip Schmidt; Joshua A. Slater; Michael Trupke; Kevin Uhl; Thomas Weimann; Witlef Wieczorek; Markus Aspelmeyer

doi:https://doi.org/10.1103/PhysRevLett.131.043603

High-Q magnetic levitation and control of superconducting microspheres at millikelvin temperatures

Joachim Hofer (Korresp. Autor*in), R. Gross, Gerard Higgins, Hans Huebl, Oliver F. Kieler, Reinhold Kleiner, Dieter Koelle, Philip Schmidt, Joshua A. Slater, Michael Trupke, Kevin Uhl, Thomas Weimann, Witlef Wieczorek, Markus Aspelmeyer

Quantenoptik, Quantennanophysik und Quanteninformation

Veröffentlichungen: Beitrag in Fachzeitschrift › Artikel › Peer Reviewed

Abstract

We report the levitation of a superconducting lead-tin sphere with 100 micrometer diameter (corresponding to a mass of 5.6 micrograms) in a static magnetic trap formed by two coils in an anti-Helmholtz configuration, with adjustable resonance frequencies up to 240 hertz. The center-of-mass motion of the sphere is monitored magnetically using a dc-SQUID as well as optically and exhibits quality factors of up to 2.6e7. We also demonstrate 3D magnetic feedback control of the sphere's motion. By implementing a cryogenic vibration isolation system we can attenuate environmental vibrations at 200 hertz by approximately seven orders of magnitude. The combination of low temperature (15 millikelvin), large mass and high quality factor as well as adjustable resonance frequencies provides a promising platform for testing quantum physics in previously unexplored regimes with high mass and long coherence times.

Originalsprache	Englisch
Aufsatznummer	043603
Seitenumfang	7
Fachzeitschrift	Physical Review Letters
Jahrgang	131
Ausgabenummer	4
DOIs	https://doi.org/10.1103/PhysRevLett.131.043603
Publikationsstatus	Veröffentlicht - 25 Juli 2023

ÖFOS 2012

103025 Quantenmechanik

Zugriff auf Dokument

https://doi.org/10.1103/PhysRevLett.131.043603Lizenz: CC BY 4.0

https://arxiv.org/abs/2211.06289Lizenz: Andere

Andere Dateien und Links

Verknüpfung zur Publikation in Scopus

1 Laufend
3 Abgeschlossen

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Projekt: Forschungsförderung
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Aspelmeyer, M. & Kiesel, T. N.
1/01/20 → 30/06/23
Projekt: Forschungsförderung
QLev4G: Quantum control of levitated massive mechanical systems: a new approach for gravitational quantum physics
Aspelmeyer, M. & Paulovics, V.
1/06/15 → 31/05/20
Projekt: Forschungsförderung

Zitationsweisen

Hofer, J., Gross, R., Higgins, G., Huebl, H., Kieler, O. F., Kleiner, R., Koelle, D., Schmidt, P., Slater, J. A., Trupke, M., Uhl, K., Weimann, T., Wieczorek, W., & Aspelmeyer, M. (2023). High-Q magnetic levitation and control of superconducting microspheres at millikelvin temperatures. Physical Review Letters, 131(4), [043603]. https://doi.org/10.1103/PhysRevLett.131.043603

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title = "High-Q magnetic levitation and control of superconducting microspheres at millikelvin temperatures",

abstract = "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.",

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AU - Hofer, Joachim

AU - Gross, R.

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AU - Huebl, Hans

AU - Kieler, Oliver F.

AU - Kleiner, Reinhold

AU - Koelle, Dieter

AU - Schmidt, Philip

AU - Slater, Joshua A.

AU - Trupke, Michael

AU - Uhl, Kevin

AU - Weimann, Thomas

AU - Wieczorek, Witlef

AU - Aspelmeyer, Markus

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N2 - 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.

AB - 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.

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JO - Physical Review Letters

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High-Q magnetic levitation and control of superconducting microspheres at millikelvin temperatures

Abstract

ÖFOS 2012

Zugriff auf Dokument

Andere Dateien und Links

Projekte

Q-Xtreme: Macroscopic Quantum Superpositions

IQLev: Inertial Sensing Based on Quantum-Enhanced Levitation Systems

QLev4G: Quantum control of levitated massive mechanical systems: a new approach for gravitational quantum physics

Zitationsweisen