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Optical coherent state discrimination using a closed-loop quantum measurement

Author

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  • Robert L. Cook

    (Quantum Measurement & Control Group, The University of New Mexico, Albuquerque, New Mexico 87131, USA)

  • Paul J. Martin

    (Quantum Measurement & Control Group, The University of New Mexico, Albuquerque, New Mexico 87131, USA)

  • J. M. Geremia

    (Quantum Measurement & Control Group, The University of New Mexico, Albuquerque, New Mexico 87131, USA)

Abstract

Put the cat out The laboratory implementation of quantum measurement procedures is often difficult, relying on delicate quantum superpositions known as Schrödinger cat states. Cook et al. now demonstrate a robust alternative technique that makes use of real-time quantum feedback in place of cat states.

Suggested Citation

  • Robert L. Cook & Paul J. Martin & J. M. Geremia, 2007. "Optical coherent state discrimination using a closed-loop quantum measurement," Nature, Nature, vol. 446(7137), pages 774-777, April.
    • Handle: RePEc:nat:nature:v:446:y:2007:i:7137:d:10.1038_nature05655
    DOI: 10.1038/nature05655
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