APS Logo

3D-integrated 25-qubit quantum annealing processor with high coherence, individualized control, and modular architecture. Part 1: design.

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 detail a novel design approach where the control and readout circuitry are routed through multiple chip tiers to create a modular architecture, and discuss how the device opens new horizons for both algorithm and hardware prototyping.

–

Presenters

  • Sergey Novikov

    Northrop Grumman - Mission Systems, Northrop Grumman Corporation

Authors

  • Sergey Novikov

    Northrop Grumman - Mission Systems, Northrop Grumman Corporation

  • Roy Murray

    Northrop Grumman - Mission Systems

  • Edward M Leonard

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

  • Alexander Marakov

    Northrop Grumman - Mission Systems

  • Thomas Chamberlin

    Northrop Grumman - Mission Systems

  • 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

  • Rabindra Das

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

  • David K Kim

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

  • 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

  • Danna Rosenberg

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

  • Wayne Woods

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

  • Donna-Ruth Yost

    MIT Lincoln Lab, 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

  • Kenneth Zick

    Northrop Grumman - Mission Systems

  • David Ferguson

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