Experimental decoy-state quantum key distribution with a sub-poissionian heralded single-photon source
Experimental decoy-state quantum key distribution with a sub-poissionian heralded single-photon source
复制标题
使用亚泊松预示单光子源进行实验诱饵态量子密钥分配
DOI：
10.1103/physrevlett.100.090501
复制
发表时间：
2008-03-07
影响因子：
8.6
通讯作者：
Karlsson, Anders
中科院分区：
文献类型：
--
作者：
Wang, Qin;Chen, Wei;Karlsson, Anders
实验证明了一种基于参量下转换的单光子源诱骗态量子密钥分配方案。我们使用了一个单向的Bennett-Bennard 1984协议，该协议具有四个状态和一个检测器的相位编码方案，该方案对最近提出的时移攻击、光子数分裂攻击具有免疫力，并且也可以被证明对特洛伊木马攻击和任何其他标准的个体或相干攻击是安全的。原则上，与其他实际方案相比，该方案可以容忍最高的损失或在固定损失下给出最高的安全密钥生成速率。这使得它成为未来量子密钥分发系统的一个非常有前途的候选者。
We have experimentally demonstrated a decoy-state quantum key distribution scheme (QKD) with a heralded single-photon source based on parametric down-conversion. We used a one-way Bennett-Brassard 1984 protocol with a four states and one-detector phase-coding scheme, which is immune to recently proposed time-shift attacks, photon-number splitting attacks, and can also be proven to be secure against Trojan horse attacks and any other standard individual or coherent attacks. In principle, the setup can tolerate the highest losses or it can give the highest secure key generation rate under fixed losses compared with other practical schemes. This makes it a quite promising candidate for future quantum key distribution systems.