Influence of charge fluctuations on Josephson phase-slip qubits

ORAL

Abstract

The Josephson phase-slip qubit (JPSQ) [1] is a superconducting circuit designed to emulate a quantum S=1/2, with a vector dipole moment that is nearly independent of applied effective field, even near zero. This property should enable the realization of full quantum vector spin interactions, including non-Stoquastic interactions that are of interest for quantum annealing and Hamiltonian quantum computing. We characterize the influence of charge fluctuations on the JPSQ, examining both discrete quasiparticle tunneling as well as drifts and jumps in the background charge offset. In addition, we describe methods for mitigating the influence of these effects to enhance operational robustness.

[1] A. J. Kerman, New J. Phys. 21, 073030 (2019)

*This research is funded by the Office of the Director of National Intelligence (ODNI), Intelligence Advanced Research Projects Activity (IARPA) under Air Force Contract No. FA8721-05-C-0002. The views and conclusions contained herein are those of the authors and should not be interpreted as necessarily representing the official policies or endorsements, either expressed or implied, of ODNI, IARPA, or the U.S. Government.

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Presenters

  • Cyrus F. Hirjibehedin

    • MIT Lincoln Laboratory
    • University College London, UK

Authors

  • Cyrus F. Hirjibehedin

    • MIT Lincoln Laboratory
    • University College London, UK

  • Steven Weber

    • MIT Lincoln Laboratory

  • Gabriel Orr Samach

    • MIT Research Laboratory of Electronics, MIT Department of Electrical Engineering and Computer Science, MIT Lincoln Laboratory, Massachusetts Institute of Technology
    • MIT Lincoln Laboratory, Massachusetts Institute of Technology
    • Massachusetts Institute of Technology MIT
    • Massachusetts Institute of Technology
    • Research Laboratory of Electronics, Massachusetts Institute of Technology
    • MIT Lincoln Laboratory

  • David K Kim

    • MIT Lincoln Laboratory
    • MIT Lincoln Lab
    • MIT-Lincoln Lab
    • MIT Lincoln Laboratories
    • Lincoln Laboratory, Massachusetts Institute of Technology (MIT)
    • Massachusetts Institute of Technology (MIT) Lincoln Laboratory

  • Alexander Melville

    • MIT Lincoln Laboratory
    • MIT Lincoln Lab
    • MIT Lincoln Laboratories
    • Massachusetts Institute of Technology (MIT) Lincoln Laboratory

  • Bethany Niedzielski

    • MIT Lincoln Laboratory

  • Danna Rosenberg

    • MIT Lincoln Laboratory
    • MIT Lincoln Lab
    • MIT Lincoln Laboratories
    • Massachusetts Institute of Technology

  • Kyle Serniak

    • MIT Lincoln Lab
    • Yale University
    • MIT Lincoln Laboratory
    • Applied Physics, Yale University

  • Jonilyn Yoder

    • MIT Lincoln Laboratory
    • MIT Lincoln Lab
    • Massachusetts Institute of Technology (MIT) Lincoln Laboratory

  • William Oliver

    • Research Laboratory of Electronics, Department of Electrical Engineering and Computer Science, Department of Physics, MIT Lincoln Laboratory, Massachusetts Institute of Techn
    • MIT Lincoln Lab
    • MIT Lincoln Laboratory
    • MIT Lincoln Laboratory, Massachusetts Institute of Technology
    • Department of Physics, Department of Electrical Engineering and Computer Science, Research Laboratory of Electronics, Lincoln Laboratory, Massachusetts Institute of Technology
    • Research Laboratory of Electronics, Massachusetts Institute of Technology MIT
    • Massachusetts Institute of Technology MIT
    • Department of Electrical Engineering and Computer Science, Department of Physics, Massachusetts Institute of Technology; MIT Lincoln Laboratory
    • Department of Electrical Engineering and Computer Science, Department of Physics, MIT Lincoln Laboratory, Massachusetts Institute of Technology
    • Massachusetts Institute of Technology
    • Research Laboratory of Electronics, Massachusetts Institute of Technology
    • Research Laboratory of Electronics, Department of Electrical Engineering & Computer Science, Department of Physics, Massachusetts Institute of Technology and MIT Lincoln Labo
    • Physics, MIT
    • MIT-Lincoln Lab
    • MIT Lincoln Laboratories
    • Research Laboratory of Electronics, Department of Physics, Department of Electrical Engineering and Computer Science, Lincoln Laboratory, Massachusetts Institute of Technolog

  • Andrew James Kerman

    • MIT Lincoln Laboratory