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Experimental magic state distillation for fault-tolerant quantum computing

Author

Listed:
  • Alexandre M. Souza

    (Institute for Quantum Computing, University of Waterloo)

  • Jingfu Zhang

    (Institute for Quantum Computing, University of Waterloo)

  • Colm A. Ryan

    (Institute for Quantum Computing, University of Waterloo)

  • Raymond Laflamme

    (Institute for Quantum Computing, University of Waterloo
    Perimeter Institute for Theoretical Physics)

Abstract

Any physical quantum device for quantum information processing (QIP) is subject to errors in implementation. In order to be reliable and efficient, quantum computers will need error-correcting or error-avoiding methods. Fault-tolerance achieved through quantum error correction will be an integral part of quantum computers. Of the many methods that have been discovered to implement it, a highly successful approach has been to use transversal gates and specific initial states. A critical element for its implementation is the availability of high-fidelity initial states, such as |0〉 and the 'magic state'. Here, we report an experiment, performed in a nuclear magnetic resonance (NMR) quantum processor, showing sufficient quantum control to improve the fidelity of imperfect initial magic states by distilling five of them into one with higher fidelity.

Suggested Citation

  • Alexandre M. Souza & Jingfu Zhang & Colm A. Ryan & Raymond Laflamme, 2011. "Experimental magic state distillation for fault-tolerant quantum computing," Nature Communications, Nature, vol. 2(1), pages 1-5, September.
    • Handle: RePEc:nat:natcom:v:2:y:2011:i:1:d:10.1038_ncomms1166
    DOI: 10.1038/ncomms1166
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