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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)

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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.