High coherence annealing, Part 2: fast annealing experiments

ORAL

Abstract

Recently developed capacitively-shunted flux qubits offer a promising path toward building a high-coherence quantum annealer. These qubits take advantage of lower persistent currents to achieve lower noise sensitivity. Using the fast readout scheme and device discussed in Part 1, Part 2 presents single-qubit annealing experiments performed using RF bias lines. We study the behavior of the qubit transition width by changing the annealing time, and we use excited state readout to determine other parameters of the system. This setup also allows for programming highly nonlinear annealing schedules to probe quantum coherence.

*This material is based upon work supported by the Intelligence Advanced Research Projects Activity (IARPA) through 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

  • Jeffrey Grover

    • Northrop Grumman

Authors

  • Jeffrey Grover

    • Northrop Grumman

  • James I. Basham

    • Northrop Grumman - Mission Systems
    • Northrop Grumman

  • Steven Disseler

    • National Institute of Standards and Technology
    • Northrop Grumman - Mission Systems
    • Northrop Grumman

  • Sergey Novikov

    • Northrop Grumman
    • Northrop Grumman - Mission Systems
    • Northrop Grumman Corporation - Mission Systems

  • David Ferguson

    • Northrop Grumman
    • Northrop Grumman - Mission Systems
    • Northrop Grumman Corporation

  • Zachary A Stegen

    • Northrop Grumman - Mission Systems
    • Northrop Grumman

  • Alexander Marakov

    • Northrop Grumman - Mission Systems
    • Northrop Grumman

  • 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

  • Robert Hinkey

    • Northrop Grumman
    • Northrop Grumman - Mission Systems

  • Moe S Khalil

    • Northrop Grumman
    • Northrop Grumman Corporation

  • Daniel A Lidar

    • University of Southern California
    • Univ of Southern California

  • Kenneth M. Zick

    • Northrop Grumman
    • Northrop Grumman - Mission Systems