Remote sensing of a levitated superconductor with a flux-tunable microwave cavity
- Author(s)
- Philip Schmidt, Remi Claessen, Gerard Higgins, Joachim Hofer, Jannek J. Hansen, Peter Asenbaum, Martin Zemlicka, Kevin Uhl, Reinhold Kleiner, Rudolf Gross, Hans Huebl, Michael Trupke, Markus Aspelmeyer
- Abstract
We present a cavity-electromechanical system comprising a superconducting quantum interference device which is embedded in a microwave resonator and coupled via a pickup loop to a 6-μg magnetically levitated superconducting sphere. The motion of the sphere in the magnetic trap induces a frequency shift in the SQUID-cavity system. We use microwave spectroscopy to characterize the system, and we demonstrate that the electromechanical interaction is tunable. The measured displacement sensitivity of 10-7m/Hz defines a path towards ground-state cooling of levitated particles with Planck-scale masses at millikelvin environment temperatures.
- Organisation(s)
- Quantum Optics, Quantum Nanophysics and Quantum Information
- External organisation(s)
- Österreichische Akademie der Wissenschaften (ÖAW), Chalmers University of Technology, IST Austria - Institute of Science and Technology, Eberhard Karls Universität Tübingen, Bayerische Akademie der Wissenschaften, Technische Universität München, Munich Center for Quantum Science and Technology (MCQST)
- Journal
- Physical Review Applied
- Volume
- 22
- No. of pages
- 17
- ISSN
- 2331-7019
- DOI
- https://doi.org/10.1103/PhysRevApplied.22.014078
- Publication date
- 07-2024
- Peer reviewed
- Yes
- Austrian Fields of Science 2012
- 103025 Quantum mechanics, 103033 Superconductivity
- ASJC Scopus subject areas
- Physics and Astronomy(all)
- Portal url
- https://ucrisportal.univie.ac.at/en/publications/remote-sensing-of-a-levitated-superconductor-with-a-fluxtunable-microwave-cavity(1d31cbc6-afd0-4a1a-b8a4-b31006ec9904).html