四粒子团簇态的量子信息分离  

Quantum Information Splitting of a Four-particle Cluster State

作　　者：明莹[1] 

机构地区：[1]延边大学理学院物理系,吉林延吉133002

出　　处：《延边大学学报（自然科学版）》2011年第3期238-241,253,共5页Journal of Yanbian University（Natural Science Edition）

摘　　要：提出一个应用两个非最大纠缠态作为量子通道分离未知四粒子团簇态的方案.方案中,发送者制备初始态和作为量子通道的纠缠态,并将部分粒子分别发送给接收者和控制者;发送者与控制者分别对粒子作Bell基联合测量,并利用经典通道将测量结果告知接收者;根据测量结果,接收者在其粒子上执行相应的操作,从而完成量子信息分离.A scheme is presented for quantum information splitting of an unknown four-particle cluster state by using two non-maximally four-particle entangled states as the quantum channel.In this scheme,the sender generates the initial state and the quantum channel,and sends some of the particles to the controller and the receiver.The receiver can reconstruct a four-particle cluster state by performing appropriate unitary transformations on his qubits after the sender and controller perform the Bell-State measurements on their qubits,respectively.

关 键 词：量子信息分离 团簇态 Bell基联合测量 

分 类 号：O431[机械工程—光学工程]