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State preservation by repetitive error detection in a superconducting quantum circuit

Author

Listed:
  • J. Kelly

    (University of California)

  • R. Barends

    (University of California
    Present address: Google Inc., Santa Barbara, California 93117, USA.)

  • A. G. Fowler

    (University of California
    Centre for Quantum Computation and Communication Technology, School of Physics, The University of Melbourne, Victoria 3010, Australia
    Present address: Google Inc., Santa Barbara, California 93117, USA.)

  • A. Megrant

    (University of California
    University of California)

  • E. Jeffrey

    (University of California
    Present address: Google Inc., Santa Barbara, California 93117, USA.)

  • T. C. White

    (University of California)

  • D. Sank

    (University of California
    Present address: Google Inc., Santa Barbara, California 93117, USA.)

  • J. Y. Mutus

    (University of California
    Present address: Google Inc., Santa Barbara, California 93117, USA.)

  • B. Campbell

    (University of California)

  • Yu Chen

    (University of California
    Present address: Google Inc., Santa Barbara, California 93117, USA.)

  • Z. Chen

    (University of California)

  • B. Chiaro

    (University of California)

  • A. Dunsworth

    (University of California)

  • I.-C. Hoi

    (University of California)

  • C. Neill

    (University of California)

  • P. J. J. O’Malley

    (University of California)

  • C. Quintana

    (University of California)

  • P. Roushan

    (University of California
    Present address: Google Inc., Santa Barbara, California 93117, USA.)

  • A. Vainsencher

    (University of California)

  • J. Wenner

    (University of California)

  • A. N. Cleland

    (University of California)

  • John M. Martinis

    (University of California
    Present address: Google Inc., Santa Barbara, California 93117, USA.)

Abstract

A quantum error correction scheme is demonstrated in a system of superconducting qubits, and repeated quantum non-demolition measurements are used to track errors and reduce the failure rate; increasing the system size from five to nine qubits improves the failure rate further.

Suggested Citation

  • J. Kelly & R. Barends & A. G. Fowler & A. Megrant & E. Jeffrey & T. C. White & D. Sank & J. Y. Mutus & B. Campbell & Yu Chen & Z. Chen & B. Chiaro & A. Dunsworth & I.-C. Hoi & C. Neill & P. J. J. O’Ma, 2015. "State preservation by repetitive error detection in a superconducting quantum circuit," Nature, Nature, vol. 519(7541), pages 66-69, March.
    • Handle: RePEc:nat:nature:v:519:y:2015:i:7541:d:10.1038_nature14270
    DOI: 10.1038/nature14270
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    Citations

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    Cited by:

    1. Ziqian Li & Tanay Roy & David Rodríguez Pérez & Kan-Heng Lee & Eliot Kapit & David I. Schuster, 2024. "Autonomous error correction of a single logical qubit using two transmons," Nature Communications, Nature, vol. 15(1), pages 1-6, December.
    2. Sainan Huai & Kunliang Bu & Xiu Gu & Zhenxing Zhang & Shuoming An & Xiaopei Yang & Yuan Li & Tianqi Cai & Yicong Zheng, 2024. "Fast joint parity measurement via collective interactions induced by stimulated emission," Nature Communications, Nature, vol. 15(1), pages 1-8, December.
    3. William P. Livingston & Machiel S. Blok & Emmanuel Flurin & Justin Dressel & Andrew N. Jordan & Irfan Siddiqi, 2022. "Experimental demonstration of continuous quantum error correction," Nature Communications, Nature, vol. 13(1), pages 1-7, December.

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