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Real-time Quantum Error Correction for a Surface-Code Logical Qubit

ORAL

Abstract

Achieving fault-tolerant universal quantum computation hinges on performing multi-round quantum error correction in real time. Several technical challenges, from instruction bandwidth to timing considerations, make it challenging to engineer a control system capable of real-time error correction. We present a control architecture for surface code with a tightly-coupled real-time quantum error decoder. We demonstrate real-time decoding of error syndromes for a Surface-17 logical qubit satisfying experimental timing constraints. We present the realization of multiple error decoding strategies and compare the hardware resources required for each implementation.

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Presenters

  • Miguel Moreira

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

Authors

  • Miguel Moreira

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

  • Brian M Tarasinski

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

  • Jordy Gloudemans

    QuTech and Kavli Institute of Nanoscience, Delft University of Technology

  • Viacheslav P. Ostroukh

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

  • Wouter Vlothuizen

    QuTech, Netherlands Organization for Applied Scientific Research

  • Leonardo DiCarlo

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