论文标题
基于相匹配的极化量子键分布方案
A polarization quantum key distribution scheme based on phase matching
论文作者
论文摘要
量子密钥分布协议可以编码单个量子状态，并在通信中实现信息性的钥匙分布协议。在实际的QKD实验系统中，通常有两种编码方法是相位编码和极化编码。 MA等人[相匹配量子键分布，物理。 Rev. X.，2018，8（3）]提出了相匹配的QKD协议，该协议具有很高的传输，并且是测量设备独立QKD的扩展。本文成功地给出了该PM-QKD协议的极化方案，极化方案中的基础是任意的，并消除了检测器侧通道攻击。此外，我们给出了极化方案的安全分析和模拟结果，并将其与BB84协议进行比较。仿真结果表明，根据固定关键速率下的传输距离，我们的协议优于BB84协议。
The Quantum Key Distribution protocol can encode a single quantum state and implements an information-theoretically secure key distribution protocol in communication. In the actual QKD experimental system, there are usually two encoding methods which are phase encoding and polarization encoding. Ma et al.[Phase-Matching Quantum Key Distribution, Phys. Rev. X., 2018, 8(3)] proposed the phase-matching QKD protocol, which has high transmission and it is an extension of the measurement device independent QKD. This paper successfully gives the polarization scheme of this PM-QKD protocol, the bases in the polarization scheme are arbitrary, and eliminates detector side channel attacks. Furthermore, we give the security analysis and simulation results of the polarization scheme, and compare it with the BB84 protocol. The simulation results show that our protocol is superior to the BB84 protocol in terms of transmission distance under the fixed key rate.
