Fast Measurement of a Tunable Superconducting Flux Qubit via a Driven Nonlinear Resonator with Applications in Quantum Annealing

ORAL

Abstract

Development of readout schemes of flux qubits in the persistent current basis is important for quantum annealing applications. High fidelity detection, controlled backaction on the qubit, as well as rapid acquisition, are all relevant for flexible quantum annealing. In order to accommodate these requirements, we develop a readout based on the use of metastable oscillation states in a nonlinear oscillator detection circuit specifically tailored for capacitively shunted flux qubits. In this work, we discuss the design as well as preliminary results for a device specifically designed for tunable capacitively shunted flux qubits specifically designed for use in quantum annealers.

*This material is based upon work supported by the Intelligence Advanced Research Projects Activity (IARPA) and the Army Research Office (ARO) under Contract No. W911NF-17-C-0050. Any opinions, findings and conclusions or recommendations expressed in this material are those of the author(s) and do not necessarily reflect the views of the Intelligence Advanced Research Projects Activity (IARPA) and the Army Research Office (ARO).

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Presenters

  • Daniel Tennant

    • Physics, University of Texas
    • Institute for Quantum Computing, Department of Physics and Astronomy, and Waterloo Institute for Nanotechnology, University of Waterloo

Authors

  • Daniel Tennant

    • Physics, University of Texas
    • Institute for Quantum Computing, Department of Physics and Astronomy, and Waterloo Institute for Nanotechnology, University of Waterloo

  • Denis Melanson

    • Institute for Quantum Computing, Department of Physics and Astronomy, and Waterloo Institute for Nanotechnology, University of Waterloo
    • Physics and Astronomy, Institute for Quantum Computing, Waterloo Institute for Nanotechnology, University of Waterloo

  • Antonio Martinez

    • University of Waterloo
    • Institute for Quantum Computing, Department of Physics and Astronomy, and Waterloo Institute for Nanotechnology, University of Waterloo
    • Physics and Astronomy, Institute for Quantum Computing, Waterloo Institute for Nanotechnology, University of Waterloo

  • Muhammet Ali Yurtalan

    • Institute for Quantum Computing, Department of Electrical and Computer Engineering, and Waterloo Institute for Nanotechnology, University of Waterloo
    • Electrical and Computer Engineering, Institute for Quantum Computing, Waterloo Institute for Nanotechnology, University of Waterloo

  • Yongchao Tang

    • Institute for Quantum Computing, University of Waterloo
    • University of Waterloo
    • Institute for Quantum Computing, Department of Physics and Astronomy, and Waterloo Institute for Nanotechnology, University of Waterloo
    • Physics and Astronomy, Institute for Quantum Computing, Waterloo Institute for Nanotechnology, University of Waterloo

  • David K Kim

    • MIT Lincoln Lab
    • Lincoln Laboratory, Massachusetts Institute of Technology
    • MIT Lincoln Laboratory
    • Massachusetts Institute of Technology
    • Massachusetts Institute of Technology Lincoln Laboratory
    • Lincoln Lab, Massachusetts Institute of Technology, USA
    • MIT Lincoln Laboratory, Massachusetts Institute of Technology

  • Alexander Melville

    • MIT Lincoln Lab
    • MIT Lincoln Laboratory
    • Massachusetts Institute of Technology
    • Lincoln Laboratory, Massachusetts Institute of Technology
    • MIT Lincoln Laboratory, 244 Wood Street, Lexington, MA 02421
    • MIT Lincoln Laboratory, Massachusetts Institute of Technology

  • Bethany M Niedzielski

    • Michigan State University
    • MIT Lincoln Laboratory
    • Lincoln Laboratory, Massachusetts Institute of Technology
    • MIT Lincoln Lab
    • Department of Physics, Massachusetts Institute of Technology
    • MIT Lincoln Laboratory, Massachusetts Institute of Technology

  • Jonilyn L Yoder

    • MIT Lincoln Lab
    • Lincoln Laboratory, Massachusetts Institute of Technology
    • MIT Lincoln Laboratory
    • Massachusetts Institute of Technology
    • Massachusetts Institute of Technology Lincoln Laboratory
    • Lincoln Lab, Massachusetts Institute of Technology, USA
    • MIT Lincoln Laboratory, 244 Wood Street, Lexington, MA 02421
    • MIT Lincoln Laboratory, Massachusetts Institute of Technology

  • Steven Weber

    • MIT Lincoln Laboratory
    • Lincoln Laboratory, Massachusetts Institute of Technology

  • Adrian Lupascu

    • University of Waterloo
    • Institute for Quantum Computing, Department of Physics and Astronomy, and Waterloo Institute for Nanotechnology, University of Waterloo
    • Physics and Astronomy, Institute for Quantum Computing, Waterloo Institute for Nanotechnology, University of Waterloo