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3D-integrated 25-qubit quantum annealing processor with high coherence, individualized control, and modular architecture. Part 2: characterization.

ORAL

Abstract

We have designed, fabricated, and measured an advanced quantum annealing processor comprised of 25 capacitively-shunted flux qubits (CSFQs) connected by 40 rf-SQUID tunable couplers. Each CSFQ features state-of-the-art persistent current readout (https://arxiv.org/abs/2006.10817). Over 200 dedicated bias lines enable unprecedented control over annealing schedules. To achieve the required scale and signal density while maintaining high coherence, we leverage MIT Lincoln Laboratory’s 3-tier stack fabrication and 3D integration process. We show data validating key aspects of the novel modular architecture where control and readout circuitry traverse multiple tiers. We discuss initial qubit measurements, and the versatility of the architecture for algorithm and hardware prototyping.

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Presenters

  • James I Basham

    Northrop Grumman - Mission Systems, Northrop Grumman Corporation

Authors

  • James I Basham

    Northrop Grumman - Mission Systems, Northrop Grumman Corporation

  • Jeffrey Grover

    Northrop Grumman - Mission Systems, Northrop Grumman Corporation

  • Steven M Disseler

    Northrop Grumman - Mission Systems, Northrop Grumman Corporation

  • Joseph Gibson

    Northrop Grumman - Mission Systems, Northrop Grumman Corporation

  • Edward M Leonard

    University of Wisconsin - Madison, University of Wisconsin-Madison, Northrop Grumman - Mission Systems

  • Alexander Marakov

    Northrop Grumman - Mission Systems

  • Vladimir Bolkhovsky

    MIT Lincoln Laboratory, Lincoln Laboratory, MIT, MIT - Lincoln Laboratory

  • John Cummings

    MIT Lincoln Lab, MIT Lincoln Laboratory

  • Rabindra Das

    MIT Lincoln Lab, MIT Lincoln Laboratory, Lincoln Laboratory, MIT, MIT - Lincoln Laboratory

  • Cyrus Hirjibehedin

    MIT Lincoln Laboratory, Lincoln Laboratory, MIT, MIT - Lincoln Laboratory

  • Jeffrey M Knecht

    MIT Lincoln Lab, MIT Lincoln Laboratory, Lincoln Laboratory, MIT, MIT - Lincoln Laboratory

  • Justin L Mallek

    MIT Lincoln Lab, MIT Lincoln Laboratory, Lincoln Laboratory, MIT, MIT - Lincoln Laboratory

  • Bethany Niedzielski

    MIT Lincoln Laboratory, MIT Lincoln Lab, Lincoln Laboratory, MIT, MIT - Lincoln Laboratory, Massachusetts Institute of Technology MIT

  • Ravi Rastogi

    MIT Lincoln Laboratory, Lincoln Laboratory, MIT, MIT - Lincoln Laboratory

  • Danna Rosenberg

    MIT Lincoln Laboratory, MIT Lincoln Lab, Lincoln Laboratory, MIT, MIT - Lincoln Laboratory

  • Kyle Serniak

    MIT Lincoln Lab, MIT Lincoln Laboratory, MIT-Lincoln Lab, Lincoln Laboratory, MIT, MIT - Lincoln Laboratory

  • Steven Weber

    MIT Lincoln Laboratory, MIT Lincoln Lab, Lincoln Laboratory, MIT, MIT - Lincoln Laboratory

  • Donna-Ruth Yost

    MIT Lincoln Lab, MIT Lincoln Laboratory, Lincoln Laboratory, MIT, MIT - Lincoln Laboratory

  • Scott Zarr

    MIT Lincoln Laboratory, Lincoln Laboratory, MIT, MIT - Lincoln Laboratory

  • Jonilyn Yoder

    MIT Lincoln Laboratory, MIT Lincoln Lab, Research Laboratory of Electronics, Massachusetts Institute of Technology, Lincoln Laboratory, MIT, MIT - Lincoln Laboratory, Massachusetts Institute of Technology MIT

  • William Oliver

    MIT Lincoln Laboratory, Research Laboratory of Electronics, Massachusetts Institute of Technology, Research Laboratory of Electronics, MIT Lincoln Laboratory, Department of Electrical Engineering and Computer Science, MIT Research Laboratory of Electronics, MIT Lincoln Laboratory, MIT Department of Electrical Engineering and Computer Science, Massachusetts Institute of Technology MIT, Massachusetts Institute of Technology, Department of Electrical Engineering and Computer Science, Massachusetts Institute of Technology, Research Laboratory of Electronics, Massachusetts Institute of Technology, MIT Lincoln Laboratory, MIT, MIT, MIT Lincoln Lab, MIT Lincoln Lab, MIT Lincoln Lab, Massachusetts Institute of Technology, Research Laboratory of Electronics, Department of Electrical Engineering and Computer Science, and Department of Physics, Massachusetts Institute of Technology. MIT Lincoln L, Department of Physics, Department of Electrical Engineering & Computer Science, Research Laboratory of Electronics, MIT Lincoln Laboratory, Massachusetts Institute of Technol, Lincoln Laboratory, Research Laboratory of Electronics, and Department of Electrical Engineering & Computer Science, MIT

  • Daniel Lidar

    Univ of Southern California, University of Southern California

  • David Ferguson

    Northrop Grumman, Northrop Grumman Corporation, Northrop Grumman - Mission Systems

  • Kenneth Zick

    Northrop Grumman - Mission Systems

  • Sergey Novikov

    Northrop Grumman - Mission Systems, Northrop Grumman Corporation