Multidimensional reconciliation for continuous-variable quantum key distribution

We propose a method for extracting an errorless secret key in a continuous-variable quantum key distribution protocol, which is based on Gaussian modulation of coherent states and homodyne detection. The crucial feature is an eight-dimensional reconciliation method, relying on the algebraic properti...

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Hauptverfasser: Leverrier, A., Alleaume, R., Boutros, J., Zemor, G., Grangier, P.
Format: Tagungsbericht
Sprache:eng
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Zusammenfassung:We propose a method for extracting an errorless secret key in a continuous-variable quantum key distribution protocol, which is based on Gaussian modulation of coherent states and homodyne detection. The crucial feature is an eight-dimensional reconciliation method, relying on the algebraic properties of octonions. By using this coding scheme with an appropriate signal-to-noise ratio, the distance for secure continuous-variable quantum key distribution can be significantly extended.
ISSN:2157-8095
2157-8117
DOI:10.1109/ISIT.2008.4595141