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基于弱非线性的量子信道认证方案 被引量:1

Quantum Channel Authentication Scheme via Weak Cross-Kerr Nonlinearity
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摘要 利用交叉克尔非线性可实现量子隐形传态过程中的Bell态非破坏性测量,提出了一个基于量子对称密码框架下弱非线性量子信道认证方案。通信双方以传输介质中交叉克尔非线性构造出两光子量子控制门,将其作为描述量子信道的共享贝尔态,非破坏性测量贝尔态完成对量子信道的认证,并对该方案安全性进行了理论分析。结果表明,此方案可以利用信道传输性能简单有效地实现量子信道的完善性认证。 The Bell state nondemolition detector technology was proposed via the weak cross-Kerr nonlinearities in the process of quantum teleportation,quantum channel authentication scheme in symmetrical quantum cryptography via weak nonlinearity was presented.After two-bit joint gates were evolved via the weak cross-Kerr nonlinearities medium by two legitimate partners,covering Bell-state that correlated with quantum channel,quantum channel authentication was completed through quantum nondemolition detector(QND)technology.Furthermore,the security performance of the scheme was analyzed in theory.The result showned that the proposed scheme is more efficient authentication to realize the complete performance of quantum channel.
出处 《量子光学学报》 北大核心 2015年第4期334-338,共5页 Journal of Quantum Optics
关键词 交叉克尔非线性 非破坏性测量 量子隐形传态 量子信道认证 cross-Kerr nonlinearities nonunitary projective measurement quantum teleportation quantum channel authentication
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