论文部分内容阅读
刻画了奇相干光源的光子数分布特征,研究了奇相干光源下诱骗态测量设备无关量子密钥分配系统的密钥生成率与安全传输距离的关系,推导了奇相干光源下的计数率下界和误码率上界.仿真结果表明,奇相干光源光子数分布中多光子脉冲的比例低于弱相干光,可以有效提高诱骗态测量设备无关密钥分配系统的最大安全通信距离,为实用的量子密钥分配实验提供了重要的理论参数.
The photon number distribution of the incoherent light source is depicted. The relationship between the key generation rate and the safe transmission distance of the decoherence light-source-independent quantum key distribution system under odd coherent light sources is studied. The lower bound of the counting rate under the odd coherent light source and And the upper bound of bit error rate.The simulation results show that the proportion of multi-photon pulses in odd photon number distribution is lower than that of weak coherent light, which can effectively increase the maximum safe communication distance of the decoherence-independent key distribution system, Key assignment experiments provide important theoretical parameters.