Multidimensional reconciliation for continuous-variable quantum key distribution

被引:3
|
作者
Leverrier, Anthony [1 ]
Alleaume, Romain [1 ]
Boutros, Joseph [3 ]
Zemor, Gilles [2 ]
Grangier, Philippe [4 ]
机构
[1] TELECOM ParisTech, 46 Rue Barrault, F-75634 Paris 13, France
[2] Univ Bordeaux 1, Inst Math Bordeaux, Bordeaux, France
[3] Univ Qatar, Texas A&M, Doha, Qatar
[4] Univ Paris, CNRS, Inst Opt, Lab Charles Fabry, F-91127 Palaiseau, France
关键词
D O I
10.1109/ISIT.2008.4595141
中图分类号
TP301 [理论、方法];
学科分类号
081202 ;
摘要
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.
引用
收藏
页码:1020 / +
页数:2
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