Protecting quantum information with entanglement and noisy optical modes

Protecting quantum information with entanglement and noisy optical modes We incorporate active and passive quantum error-correcting techniques to protect a set of optical information modes of a continuous-variable quantum information system. Our method uses ancilla modes, entangled modes, and gauge modes (modes in a mixed state) to help correct errors on a set of information modes. A linear-optical encoding circuit consisting of offline squeezers, passive optical devices, feedforward control, conditional modulation, and homodyne measurements performs the encoding. The result is that we extend the entanglement-assisted operator stabilizer formalism for discrete variables to continuous-variable quantum information processing. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Quantum Information Processing Springer Journals

Protecting quantum information with entanglement and noisy optical modes

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Publisher
Springer US
Copyright
Copyright © 2009 by Springer Science+Business Media, LLC
Subject
Physics; Quantum Information Technology, Spintronics; Quantum Computing; Data Structures, Cryptology and Information Theory; Quantum Physics; Mathematical Physics
ISSN
1570-0755
eISSN
1573-1332
D.O.I.
10.1007/s11128-009-0117-x
Publisher site
See Article on Publisher Site

References

  • Teleportation of continuous quantum variables
    Braunstein, S.L.; Kimble, H.J.
  • General entanglement-assisted quantum error-correcting codes
    Hsieh, M.H.; Devetak, I.; Brun, T.

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