基于非最大纠缠态的受控量子安全直接通信协议  

Controlled quantum secure direct communication protocol with nonmaximal entangled state

作　　者：黄红梅 

机构地区：[1]武警工程大学信息工程系,西安710086

出　　处：《激光杂志》2013年第1期31-33,共3页Laser Journal

基　　金：武警工程学院基础基金研究项目(NO:WJY201116)

摘　　要：基于非最大纠缠两粒子态,提出一种多方控制的量子安全直接通信协议。通信过程利用decoy光子来检测窃听,保证信道安全。发送方直接将秘密消息编码在不同的两粒子态中,控制方对其中一粒子序列随机的执行一个幺正操作,接收方只有在得到所有控制方的同意之后,才能恢复出发送方的秘密消息。该协议中信道是非最大纠缠信道,不易受噪声的影响;由于两粒子态易制备,该协议现有技术可实现;所有粒子都用于传输秘密消息,量子比特效率较高。We present a multiparty controlled quantum secure direct communication protocol with the nonmaximal entangled state. The communication parties utilize decoy photons to check eavesdropping. The sender encodes the secret message on the different two particle states directly, controllers carry one united operation on the one of the particle sequence random, the receiver only can recover the secret message under the permission of all the controllers. It is the nonmaximal entangled channel and not easy to be influenced, the protocol is can be realized with existing technique for the two particles state is easy to prepared, all particles are used to transmit secret message, the qubit efficiency is high.

关 键 词：量子密码 量子安全直接通信 两粒子纠缠态 

分 类 号：TN918[电子电信—通信与信息系统]