Quantum error correction experiments on a 17-qubit superconducting processor. Part I: Optimized calibration strategies.

ORAL

Abstract

This three-part series focuses on the realization of various quantum error correction (QEC) codes on a 17-transmon device designed for the distance-3 surface code. The constituent weight-2 to weight-4 stabilizer measurements for these codes are suboptimally constructed if simply compiled from one- and two-qubit gates and single-qubit readout tuned in isolation. In this first part, we present highly parallelized and orthogonal calibration methods for optimally calibrating the stabilizer measurements as parallel block units. This approach improves performance as it absorbs coherent phase errors due to residual ZZ coupling and flux crosstalk.

*Research funded by IARPA (U.S. Army Research Office Grant No. W911NF-16-1-0071) and Intel Corporation

–

Presenters

  • Hany Ali

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

Authors

  • Hany Ali

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

  • Jorge F Marques

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

  • Olexiy O Fedorets

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

  • Matvey Finkel

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

  • Christos Zachariadis

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

  • Miguel Moreira

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

  • Wouter J Vlothuizen

    • QuTech and Netherlands Organization for Applied Scientific Research, The Netherlands
    • Netherlands Organisation for Applied Scientific Research
    • Delft University of Technology,

  • Marc Beekman

    • Netherlands Organisation for Applied Scientific Research
    • Netherlands Organisation for Applied Scientific Research, The Netherlands
    • QuTech and Netherlands Organisation for Applied Scientific Research, The Netherlands

  • Nadia Haider

    • QuTech and Netherlands Organisation for Applied Scientific Research, The Netherlands
    • Netherlands Organisation for Applied Scientific Research

  • Alessandro Bruno

    • QuTech and Kavli Institute of Nanoscience, Delft University of Technology, The Netherlands
    • Delft University of Technology
    • QuTech, Kavli Institute of Nanoscience, Delft University of Technology
    • QuTech and Kavli Institute of Nanoscience, Delft University of Technology, and Quantware, B.V., The Netherlands

  • Leonardo DiCarlo

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