The performance of measurement-device-independent quantum key distribution (MDI-QKD) with three-intensity decoy-state is completely analyzed. The statistical fluctuation based on the central limit theorem is also considered both in symmetric and asymmetric cases. Our simulation results show that in the MDI-QKD system, the choice of the decoy state intensities is more important than the choice of the signal state. More significantly, the ratio between Alice’s signal state optimal intensities and decoy state is well approximately equal to Bob’s in the asymmetric case. These results can be used to optimize the practical quantum communication system.

中文翻译：

---

三强度诱饵状态测量装置无关的量子密钥分配的性能

全面分析了具有三强度诱饵态的与测量设备无关的量子密钥分配（MDI-QKD）的性能。在对称和非对称情况下，也要考虑基于中心极限定理的统计波动。我们的仿真结果表明，在MDI-QKD系统中，诱骗状态强度的选择比信号状态的选择更为重要。更重要的是，在非对称情况下，爱丽丝的信号状态最佳强度与诱饵状态之间的比率大致等于鲍勃的比率。这些结果可用于优化实际的量子通信系统。