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Experimental demonstration of topological error correction

Author

Listed:
  • Xing-Can Yao

    (Shanghai Branch, University of Science and Technology of China)

  • Tian-Xiong Wang

    (Shanghai Branch, University of Science and Technology of China)

  • Hao-Ze Chen

    (Shanghai Branch, University of Science and Technology of China)

  • Wei-Bo Gao

    (Shanghai Branch, University of Science and Technology of China)

  • Austin G. Fowler

    (CQC2T, School of Physics, University of Melbourne)

  • Robert Raussendorf

    (University of British Columbia, Vancouver, British Columbia V6T 1Z1, Canada)

  • Zeng-Bing Chen

    (Shanghai Branch, University of Science and Technology of China)

  • Nai-Le Liu

    (Shanghai Branch, University of Science and Technology of China)

  • Chao-Yang Lu

    (Shanghai Branch, University of Science and Technology of China)

  • You-Jin Deng

    (Shanghai Branch, University of Science and Technology of China)

  • Yu-Ao Chen

    (Shanghai Branch, University of Science and Technology of China)

  • Jian-Wei Pan

    (Shanghai Branch, University of Science and Technology of China)

Abstract

Scalable quantum computing can be achieved only if quantum bits are manipulated in a fault-tolerant fashion. Topological error correction—a method that combines topological quantum computation with quantum error correction—has the highest known tolerable error rate for a local architecture. The technique makes use of cluster states with topological properties and requires only nearest-neighbour interactions. Here we report the experimental demonstration of topological error correction with an eight-photon cluster state. We show that a correlation can be protected against a single error on any quantum bit. Also, when all quantum bits are simultaneously subjected to errors with equal probability, the effective error rate can be significantly reduced. Our work demonstrates the viability of topological error correction for fault-tolerant quantum information processing.

Suggested Citation

  • Xing-Can Yao & Tian-Xiong Wang & Hao-Ze Chen & Wei-Bo Gao & Austin G. Fowler & Robert Raussendorf & Zeng-Bing Chen & Nai-Le Liu & Chao-Yang Lu & You-Jin Deng & Yu-Ao Chen & Jian-Wei Pan, 2012. "Experimental demonstration of topological error correction," Nature, Nature, vol. 482(7386), pages 489-494, February.
    • Handle: RePEc:nat:nature:v:482:y:2012:i:7386:d:10.1038_nature10770
    DOI: 10.1038/nature10770
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    Cited by:

    1. Kui An & Zilei Liu & Ting Zhang & Siqi Li & You Zhou & Xiao Yuan & Leiran Wang & Wenfu Zhang & Guoxi Wang & He Lu, 2024. "Efficient characterizations of multiphoton states with an ultra-thin optical device," Nature Communications, Nature, vol. 15(1), pages 1-7, December.

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