通过四比特|χ〉态实现任意量子态的量子隐形传态方案（英文）  

Perfect quantum teleportation of arbitrary one-qubit and two-qubit states via four-qubit | χ〉state

作　　者：吴尝[1] 吴韬[2,3] WU Chang;WU Tao(College of Information Engineering,Fuyang Normal University,Fuyang 236041,China;Research Centre of Quantum Information Technology, Fuyang Normal University,Fuyang 236037,China;School of Physics&Electronics Engineering,Fuyang Normal University,Fuyang 236037,China)

机构地区：[1]阜阳师范学院信息工程学院,阜阳236041 [2]阜阳师范学院量子信息技术研究中心,阜阳236037 [3]阜阳师范学院物理与电子工程学院,阜阳236037

出　　处：《原子与分子物理学报》2018年第5期829-833,共5页Journal of Atomic and Molecular Physics

基　　金：安徽省高校优秀青年人才支持计划重点项目(gxyqZD2016190);国家自然科学基金(11605028);安徽省教育厅自然科学研究重点项目(KJ2013A205,KJ2016A547);安徽省高等学校省级质量工程项目(2016jyxm0773);阜阳师范学院教学研究项目(2016JXTD03,2015JYXM34,2014JYXM18);阜阳师范学院科研创新团队(kytd201706)

摘　　要：提出了一个将四比特|χ〉态作为量子通道实现任意单量子比特和两量子比特的量子态的隐形传送方案.该方案依赖于两个通信站点之间的纠缠.在这个方案里,我们给出了Alice的测量结果以及Bob进行的相应的幺正操作,计算结果表明,该隐形传送方案是完美的,也就是说它的成功概率可达到1.此外,该方案中用到的测量以及纠缠通道的制备在目前的技术下是完全可行的.因此,我们的方案有望在实验上实现.A protocol for the teleportation of arbitrary quantum states of one and two-qubit is presented.The quantum channels described by the four-qubit|χ〉state,are easily prepared by the atoms inside the high-Q cavities.The scheme relies on the establishment of entanglement between the two communication sites.In the scheme,we explicitly calculated Alice’s measurement results and corresponding unitary operations required by Bob to reconstruct the deferent unknown quantum state.The result shows that the quantum teleportation protocol is perfect,i.e.the success probability of the scheme can reach 1.Moreover,in the scheme,both the measurement and preparation of the quantum channel can be implemented in the present techniques.Therefore,the scheme can be realized in the experiment in the future.

关 键 词：量子信息 量子隐形传态 四量子比特|χ〉态 

分 类 号：O431.2[机械工程—光学工程]