多维量子的受控量子安全直接通信  

Controlled quantum secure direct communication based on multi-dimensional Bell state

作　　者：翁鹏飞[1] 陈红[1] 蔡晓霞[1] 陈坚[1] 

机构地区：[1]解放军电子工程学院,合肥230037

出　　处：《激光杂志》2017年第9期69-72,共4页Laser Journal

基　　金：国家自然科学基金(61571446);安徽省自然科学基金(KY13C152)

摘　　要：为了提高量子通信数据传输效率和传输过程的可控性,我们设计了一种多维量子的受控量子安全直接通信的方案。方案中,信息发送者(Alice)、信息接收者(Bob)共享多维Bell态粒子。在确认信道安全后,Alice制备编码过的多维单光子序列,然后通过对单光子执行量子受控非操作,使单光子和多维Bell态建立纠缠关系,接着Alice公布自己对手中的粒子的测量结果,控制者(Charlie)对自己手中的粒子进行单粒子的测量。Bob在获得Charlie信息时可以恢复出秘密信息,在未获得Charlie许可的情况下,Bob不能恢复秘密信息。最后采用熵理论和窃听检测分析协议的安全性,证明该方案是安全可靠的,同时和文献^([11])相比每量子位的窃听探测率提高了11%,最后计算在四维Bell态下该协议经典的传输效率为181.8%,量子比特效率为33.3%。In order to improve the efficiency of quantum communication data transmission and the controllability of the transmission process, we designed a controlled quantum secure direct communication scheme based on multi-dimensional quantum. In the scheme, the information sender Alice, the information receiver Bob shares the multi-dimensional Bell state particles. After confirming the channel security, Alice prepares to encode a multi-dimensional single photon sequence. Then, through the implementation of a single photon quantum by the controlled non operation, to establish entanglement relation between the single photon and multi-dimensional Bell states. Then, Alice announced the results of the measurements of the particles in the opponents. Charlie measures the single particle of its own particles. Bob can restore the secret information when obtain the Charlie＇ s information, but can not restore the secret information without Charlie＇ s permission. Finally, analyzes the protocol security based on entropy theory and eavesdropping detection, which proves that the design is safe and reliable. At the same time, the each qubit eaves- dropping rate is increased by 11% compared with the literature[11]. Finally the transmission efficiency of the protocol is 181.8% under the four-dimensional Bell state and quantum efficiency is 33.3%.

关 键 词：量子安全直接通信 窃听检测 多维Bell态 量子信息 

分 类 号：O431.2[机械工程—光学工程]