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.

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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