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High-speed linear optics quantum computing using active feed-forward

Author

Listed:
  • Robert Prevedel

    (University of Vienna)

  • Philip Walther

    (University of Vienna
    Harvard University)

  • Felix Tiefenbacher

    (University of Vienna
    Institute for Quantum Optics and Quantum Information (IQOQI), Austrian Academy of Sciences)

  • Pascal Böhi

    (University of Vienna
    Max-Planck-Institut für Quantenoptik und Sektion Physik der Ludwig-Maximilians-Universität)

  • Rainer Kaltenbaek

    (University of Vienna)

  • Thomas Jennewein

    (Institute for Quantum Optics and Quantum Information (IQOQI), Austrian Academy of Sciences)

  • Anton Zeilinger

    (University of Vienna
    Institute for Quantum Optics and Quantum Information (IQOQI), Austrian Academy of Sciences)

Abstract

Computing: the right stuff Until now experimental proof-of-principle demonstrations of optical quantum computers have been probabilistic: that is, the computation succeeds in only a small fraction of runs. Exploiting a computer architecture called one-way quantum computation, Prevedel et al. have now succeeded in undoing emergent errors by 'feed-forwarding' those events and applying error correction in real time. In effect the quantum computer is forced to produce the right result when the 'compute' button is pressed. This experimental demonstration of one-way quantum computation could be a key result for the future development of these systems.

Suggested Citation

  • Robert Prevedel & Philip Walther & Felix Tiefenbacher & Pascal Böhi & Rainer Kaltenbaek & Thomas Jennewein & Anton Zeilinger, 2007. "High-speed linear optics quantum computing using active feed-forward," Nature, Nature, vol. 445(7123), pages 65-69, January.
    • Handle: RePEc:nat:nature:v:445:y:2007:i:7123:d:10.1038_nature05346
    DOI: 10.1038/nature05346
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