APS Logo

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.

–

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