强度波动下参考系无关量子密钥分发对比研究

来源 :量子电子学报 | 被引量 : 0次 | 上传用户：dudulee

【摘要】

：

为了探究参考系无关量子密钥分发(RFI-QKD)协议下不同光源应对光源强度波动的能力差异,提出了一种在非完美光源下参考系无关协议密钥率的理论分析计算方案.考虑常见的量子通信系统参数,通过计算机仿真模拟分析对比了量子密钥分发中常用且易于获得的弱相干源(WCS)与可预报单光子源(HSPS)以及可预测相干光源(HPCS)在强度波动下的具体表现.结果表明:强度波动分析方案在参考系无关协议下具有可实现性,相比常用弱相干源,可预报单光子源和可预测相干光源在相同条件下具有更好的性能以及抵御强度波动缺陷的能力,其中可预测

【作者】

：

杨舜禹马海强李振华

【机构】

：

北京邮电大学理学院, 北京 100876

【出处】

：

量子电子学报

【发表日期】

：

2021年6期

【关键词】

：

量子光学量子密钥分发参考系无关诱骗态可预报单光子源可预测相干光源

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强度波动下参考系无关量子密钥分发对比研究

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