基于6粒子团簇态实现2粒子任意态的量子信息分离  

Quantum Information Splitting of an Arbitrary Two-Qubit State by Using Six-Qubit Cluster State

作　　者：李渊华[1] 金翠平[1] 王永胜[1] 乔学增[1] 聂义友[1,2] 

机构地区：[1]江西师范大学物理与通信电子学院,江西南昌330022 [2]江西省光电子与通信重点实验室,江西南昌330022

出　　处：《江西师范大学学报（自然科学版）》2010年第5期502-505,共4页Journal of Jiangxi Normal University(Natural Science Edition)

基　　金：国家自然科学基金(60807014);江西省自然科学基金(2009GZW0005);区域光纤通信网与新型光通信系统国家重点实验室开放课题;江西省教育厅科研项目(GJJ09153)资助

摘　　要：通过对Lu Chao-yang等最近介绍6粒子团簇态的新应用研究,提出了一个新的2粒子任意态的信息分离方案.在这个方案中,发送者对自己拥有的粒子做一次5粒子von-Neumann联合测量,控制者对其拥有的粒子做单粒子的投影测量,接受者根据发送者和控制者的测量结果,对自己拥有的粒子做适当的幺正变换,就可以重建发送者的2粒子任意态,该方案成功的概率为100%.A new application of the six-qubit cluster state introduced recently by Lu Chao-yang is investigated for quantum information splitting（QIS） of an arbitrary two-qubit state.For QIS,the sender needs to perform five-qubit joint von-Neumann measurement on her qubits,and the controller needs to perform a single-qubit projective measurement on his qubit,then the receiver can reconstruct the arbitrary two-qubit state by performing some appropriately unitary transformations on his qubits after he knows the measured results of both the sender and the controller.The probability of success of the program is 100%.

关 键 词：量子信息分离 6粒子团簇态 幺正变换 

分 类 号：O431.2[机械工程—光学工程] TN918[理学—光学]