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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.

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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