Implementing leakage reduction units for quantum error correction with superconducting qubits

ORAL

Abstract

Leakage presents a major threat to quantum error correction with superconducting qubits. We present the realization of hardware-efficient leakage reduction units (LRU) in superconducting qubits in the context of quantum error correction. In particular, we show LRUs suitable for both ancilla and data qubits and benchmark their performance in the leakage and qubit subspaces. Finally, we assess the impact of the LRU operations on repeated stabilizer measurements in a 17-transmon device designed for the distance-3 surface code.

*Research funded by IARPA (U.S. Army Research Office Grant No. W911NF-16-1-0071), Intel Corporation, and the Netherlands Organization for Scientific Research (NWO, NWA.1292.19.194 and 601.QT.001-1.).

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Presenters

  • Jorge F Marques

    • Qutech and Netherlands Organization for Applied Scientific Research
    • Delft University of Technology

Authors

  • Jorge F Marques

    • Qutech and Netherlands Organization for Applied Scientific Research
    • Delft University of Technology

  • Hany Ali

    • Delft University of Technology

  • Matvey Finkel

    • Qutech and Kavli Institute of Nanoscience, Delft University of Technology
    • QuTech and Kavli Institute of Nanoscience

  • Hendrik M Veen

    • Qutech and Kavli Institute of Nanoscience, Delft University of Technology
    • Delft University of Technology

  • Sean van der Meer

    • Qutech and Kavli Institute of Nanoscience, Delft University of Technology
    • Delft University of Technology
    • QuTech and Kavli Institute of Nanoscience, Delft University of Technology, The Netherlands

  • Santiago Valles-Sanclemente

    • QuTech and Kavli Institute of Nanoscienc

  • Boris Varbanov

    • Delft University of Technology

  • Wouter Vlothuizen

    • Qblox
    • Qblox bv

  • Marc Beekman

    • Qutech and Netherlands Organization for Applied Scientific Research
    • Delft University of Technology

  • Nadia Haider

    • Qutech and Netherlands Organization for Applied Scientific Research
    • Netherlands Org Scientific Res

  • Barbara M Terhal

    • Delft University of Technology

  • Leonardo DiCarlo

    • Qutech and Kavli Institute of Nanoscience, Delft University of Technology
    • Delft University of Technology