Unconditional Security Proof of Long-Distance Continuous-Variable Quantum Key Distribution with Discrete Modulation

被引：314

作者：

Leverrier, Anthony ^{[1
]}

Grangier, Philippe ^{[2
]}

机构：

[1] Inst Telecom Telecom ParisTech, CNRS, LTCI, F-75634 Paris 13, France

[2] Univ Paris 11, CNRS, Lab Charles Fabry, Inst Opt, F-91127 Palaiseau, France

来源：

PHYSICAL REVIEW LETTERS | 2009年 / 102卷 / 18期

关键词：

D O I：

10.1103/PhysRevLett.102.180504

中图分类号：

O4 [物理学];

学科分类号：

070305 [高分子化学与物理];

摘要：

We present a continuous-variable quantum key distribution protocol combining a discrete modulation and reverse reconciliation. This protocol is proven unconditionally secure and allows the distribution of secret keys over long distances, thanks to a reverse reconciliation scheme efficient at very low signal-to-noise ratio.

引用

页数：4

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