Quantum Key Agreement Against Collective Decoherence
Quantum Key Agreement Against Collective Decoherence
复制标题
反对集体退相干的量子密钥协议
DOI：
10.1007/s10773-014-2087-8
复制
发表时间：
2014-09-01
影响因子：
1.4
通讯作者：
Sun, Ying
中科院分区：
文献类型：
--
作者：
Huang, Wei;Su, Qi;Sun, Ying
提出了一种基于无退相干态和单粒子测量的高效、鲁棒的量子密钥协商协议。与以往的QKA协议相比，该协议不仅能保证共享密钥的安全性和公平性，而且不受集体退相干的影响。此外，我们的协议具有很高的内在效率，由于利用延迟测量技术。最后，我们证明了所提出的协议是安全的，对来自外部窃听者和内部不诚实的参与者的攻击。
A robust and efficient quantum key agreement (QKA) protocol is presented with decoherence-free (DF) states and single-particle measurements. Compared with all the previous QKA protocols, which are designed in ideal condition, this protocol can not only guarantee both the security and fairness of the shared key but also be immune to collective decoherence. In addition, our protocol has a high intrinsic efficiency due to the utilization of the delayed measurement technique. Finally, we show that the proposed protocol is secure against the attacks from both outside eavesdroppers and inside dishonest participants.