APS Logo

Scalable, pipelined stabilizer measurement scheme and high-fidelity logical operations in a distance-2 surface code

ORAL

Abstract

The ability to perform simultaneous multi-round stabilizer measurements and high-fidelity logical operations are necessary to realize quantum error correction. We present the realization and comparison of high-fidelity fault-tolerant and non-fault tolerant logical operations (initialization, gates and measurement) in Surface-7, the distance-2 surface code, implemented in a superconducting quantum processor. We demonstrate superior performance of the pipelined [Versluis et al., Phys. Rev. Applied 8, 034021, (2017)] implementation of multi-round error detection over the parallel alternative, a key step enabling scalability to larger surface codes.

–

Presenters

  • Jorge Marques

    Delft University of Technology

Authors

  • Jorge Marques

    Delft University of Technology

  • Miguel S Moreira

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

  • Hany Ali

    Delft University of Technology

  • Nandini Muthusubramanian

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

  • Wouter Vlothuizen

    Delft University of Technology, TNO

  • Marc Beekman

    Delft University of Technology

  • Chris Zachariadis

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

  • Nadia Haider

    Delft University of Technology, Netherlands Organization for Scientific Research (TNO), Netherlands Organisation for Applied Scientific Research (TNO)

  • Alessandro Bruno

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

  • Leonardo DiCarlo

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