集体噪声信道中基于逻辑Bell态可控的量子对话协议

发布时间：2018-03-29 15:46

  本文选题：量子对话　切入点：集体噪声　出处：《西北大学学报(自然科学版)》2017年02期

【摘要】：利用逻辑Bell态提出两个分别抵抗集体退相位噪声和集体旋转噪声的可控的鲁棒量子对话协议。协议的量子资源是利用DF(Decoherence free)态构造的逻辑Bell态,在第3方的控制下,通信双方仅需单光子测量,可获得秘密消息,控制方却不能获得任何秘密消息。所提出协议最大优点是第3方可控,无信息泄露问题。控制方需进行Bell基测量,但通信方仅需单光子测量,通信双方的编译码仅用异或操作完成,简单易行。对协议进行安全性分析证明了协议的有效性。
[Abstract]:Using logical Bell state, two controllable robust quantum dialogue protocols are proposed to resist collective dephase noise and collective rotation noise, respectively. The quantum resource of the protocol is a logical Bell state constructed from a DF(Decoherence free) state, under the control of the third party. The two sides of the communication only need single photon measurement to obtain secret message, but the control party can not obtain any secret message. The biggest advantage of the proposed protocol is that the third party is controllable and there is no problem of information leakage. The control party needs to carry out the Bell base measurement. However, the communication party only needs single photon measurement, and the encoding and decoding of both sides of the communication is completed by XOR operation, which is simple and easy. The security analysis of the protocol proves the validity of the protocol.
【作者单位】： 西安电子科技大学电子工程学院;武警工程大学信息工程系;
【基金】：国家自然科学基金资助项目(61401340,61402529) 中国科学院精密导航定位与定时技术重点实验室基金资助项目(2012PNTT02)
【分类号】：O413;TN918
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