Characterizing the Propagation of Gate Errors in Experimental Quantum Algorithms

ORAL

Abstract

Universal quantum computation requires a complete gate-set of single-qubit operations and a two-qubit entangling gate. As research progresses towards useful applications of NISQ-era quantum processors, infidelities in these operations limit the depth of algorithms accessible on near-term devices. While Clifford Randomized Benchmarking provides a rough metric for the fidelity of operations in a random quantum algorithm, this metric can fail to capture the buildup of coherent error in algorithms with significant internal symmetry, such as Trotterization. In this talk, we present recent measurements characterizing the propagation of gate errors in a Trotterized quantum algorithm performed using >99.9% fidelity single-qubit and 99.7% fidelity controlled-phase (CZ) gates between flux-tunable transmon qubits. We consider the role played by coherent and incoherent gate errors in deep quantum circuits, and we look at how their propagation depends on the choice of gate compilation.

*This research was funded in part by the ARO grant No. W911NF-18-1-0411 and the ASDRE via MIT Lincoln Laboratory under Air Force Contract No. FA8721-05-C-0002. Opinions, interpretations, conclusions, and recommendations are those of the authors and are not necessarily endorsed by the US Government.

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Presenters

  • 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

Authors

  • 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

  • Morten Kjaergaard

    • Research Laboratory of Electronics, Massachusetts Institute of Technology MIT
    • Massachusetts Institute of Technology MIT
    • Research Laboratory of Electronics, Massachusetts Institute of Technology
    • Massachusetts Institute of Technology

  • Amy Greene

    • Massachusetts Institute of Technology MIT
    • Massachusetts Institute of Technology
    • Research Laboratory of Electronics, Massachusetts Institute of Technology

  • Mollie Schwartz

    • MIT Lincoln Laboratory
    • MIT Lincoln Lab

  • Andreas Bengtsson

    • Research Laboratory of Electronics, Massachusetts Institute of Technology MIT
    • Chalmers University of Technology
    • Chalmers Univ of Tech
    • Chalmers Institute of Technology
    • Microtechnology and Nanoscience, Chalmers University of Technology

  • Michael O'Keeffe

    • MIT Lincoln Laboratory

  • Chris McNally

    • Massachusetts Institute of Technology
    • Massachusetts Institute of Technology MIT
    • Research Laboratory of Electronics, Massachusetts Institute of Technology

  • Youngkyu Sung

    • Research Laboratory of Electronics, Massachusetts Institute of Technology MIT
    • Massachusetts Institute of Technology MIT
    • Research Laboratory of Electronics, Massachusetts Institute of Technology
    • Massachusetts Institute of Technology

  • Philip Krantz

    • Research Laboratory of Electronics, Massachusetts Institute of Technology MIT
    • Chalmers University of Technology
    • Chalmers Institute of Technology
    • Chalmers Univ of Tech

  • Jochen Braumueller

    • Massachusetts Institute of Technology MIT
    • Research Laboratory of Electronics, Massachusetts Institute of Technology
    • Massachusetts Institute of Technology

  • Roni Winik

    • Research Laboratory of Electronics, Massachusetts Institute of Technology
    • Research Laboratory of Electronics, Massachusetts Institute of Technology MIT
    • Massachusetts Institute of Technology MIT
    • Massachusetts Institute of Technology

  • 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

  • Jonilyn Yoder

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

  • Danna Rosenberg

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

  • Kevin Obenland

    • MIT Lincoln Laboratory

  • Terry Philip Orlando

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

  • Simon Gustavsson

    • Research Laboratory of Electronics, Massachusetts Institute of Technology
    • Research Laboratory of Electronics, Massachusetts Institute of Technology MIT
    • Massachusetts Institute of Technology MIT
    • Massachusetts Institute of Technology
    • Research Laboratory of Electronics, Massachusetts Institute of Technology (MIT)

  • 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