Interfacing epitaxial rare earth spins with superconducting circuits for high-sensitivity ESR

ORAL

Abstract

Hybrid quantum systems interfacing superconducting circuits with solid-state spin ensembles provide a practical route to realizing long-term microwave quantum memories and high-sensitivity inductive electron spin resonance (ESR) detection [1,2]. Specifically, ensembles of erbium ions are a promising platform for quantum networks and transduction [3] due to their long coherence times and telecom band optical transition at 1.54 μm. We report on pulsed and continuous wave ESR spectroscopy measurements of erbium dopants in Y2O3 [4] performed at millikelvin temperature using a microwave resonator. Using a superconducting low impedance resonator on epitaxially grown thin-film Y2O3 will allow for further increased coupling rates between the cavity photons and electron spins on the order of kHz.

[1] A. Bienfait et al., Nature Nanotechnology 11, 253-257 (2016)
[2] C. Eichler et al., Phys Rev Lett. 118, 037701 (2017)
[3] Lewis A. Williamson et al., Phys. Rev. Lett. 113, 203601 (2014)
[4] Supratik Guha et al., Appl. Phys. Lett. 80, 766 (2002)

*We acknowledge funding support from the National Science Foundation EAGER award No 1843044, Funder Id: http://dx.doi.org/10.13039/100000001.
This work was supported by a NASA Space Technology Research Fellowship.

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Presenters

  • Shobhit Gupta

    • Physics, University of Chicago

Authors

  • Noah Johnson

    • Pritzker School of Molecular Engineering, University of Chicago

  • Shobhit Gupta

    • Physics, University of Chicago

  • Yuxiang Pei

    • Physics, University of Science and Technology of China

  • Manish Kumar Singh

    • Pritzker School of Molecular Engineering, University of Chicago
    • University of Chicago

  • Supratik Guha

    • Argonne National Laboratory
    • University of Chicago

  • David I Schuster

    • University of Chicago
    • Physics, University of Chicago
    • Department of Physics and the James Franck Institute, University of Chicago
    • The James Franck Institute and Department of Physics, University of Chicago
    • The James Franck Institute and Department of Physics, The University of Chicago

  • Tian Zhong

    • University of Chicago
    • Pritzker School of Molecular Engineering, University of Chicago

  • Jun Yang

    • Corning Inc.

  • Haitao Zhang

    • Corning Inc.