相干态连续变量量子密码的安全性：后选择优势的下降
Security of Continuous-variable quantum cryptography using coherent states: Decline of postselection advantage
摘要：
研究了正交多余噪声环境下相干态连续变量量子密钥分发（QKD）的安全性。我们考虑一个窃听攻击，使用线性放大器和分束器。这种攻击将分束攻击和拦截重发攻击（经典的隐形传态攻击）联系起来。我们还展示了后选择如何在一个现实的渠道失去其效率。
英文摘要：
We investigate the security of continuous-variable (CV) quantum key distribution (QKD) using coherent states in the presence of quadrature excess noise. We consider an eavesdropping attack which uses a linear amplifier and beam splitter. This attack makes a link between beam-splitting attack and intercept-resend attack (classical teleportation attack). We also show how postselection loses its efficiency in a realistic channel.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
