论文部分内容阅读
给出了由于偏振演化引起的偏向角与量子误码率(QBER)关系,仿真了不同波长的单参考光和同一偏振态(SOP)的双参考光在不同距离上对单SOP的信号光进行补偿时的偏向角分布,对于偏振编码的量子密钥分发(QKD)系统,提出了使用SOPs非正交的双参考光并通过在庞加莱球上跟踪双参考光的中间SOP对光量子进行偏振补偿的具体策略,最后仿真验证了该策略的可行性。
The relation between the deflection angle and QBER caused by the evolution of polarization is given. The single reference light of different wavelengths and the double reference light of the same polarization state (SOP) are simulated at different distances for single SOP signal light For polarization coded quantum key distribution (QKD) systems, two-reference light using SOPs non-orthogonal is proposed and the light quanta is polarized by tracing the mid-SOP of the double reference light on the Poincare sphere The specific strategy of compensation, the final simulation verifies the feasibility of the strategy.