摘要
通过对Brown等人介绍的5粒子纠缠态的新应用研究,利用5粒子纠缠态作为量子信道提出了一个单粒子任意态的信息共享方案.首先,发送者对自己拥有的粒子做一次4粒子von-Neumann联合测量.然后,控制者对其拥有的粒子做单粒子测量.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单粒子任意态.方案成功的概率为100%.
A new application of the genuinely entangled five-qubit state introduced recently by Brownis investi-gated for quantum state sharing（QSTS） of an arbitrary single qubit state.For QSTS,the sender needs to perform four-qubit joint von-Neumann measurement on her qubits,and the controller needs to perform a single-qubit measurement on his qubit,then the receiver can reconstruct the arbitrary single 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 successful probability of the protocol is 100%.
出处
《江西师范大学学报（自然科学版）》
CAS
北大核心
2011年第2期155-157,160,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
关键词
量子信息共享
5粒子纠缠态
幺正变换
quantum state sharing
genuinely entangled five-qubit state
unitary transformation
