一种类型的三量子比特纠缠态远程制备  

Remote preparation of a class of three-qubit entangled states

作　　者：朱克印[1] 王栋[1] 

机构地区：[1]安徽大学物理与材料科学学院,安徽合肥230039

出　　处：《安徽大学学报（自然科学版）》2009年第3期56-59,77,共5页Journal of Anhui University(Natural Science Edition)

摘　　要：提出一种类型三量子比特GHZ态远程制备(RSP)实现方案,利用两量子比特的最大纠缠态(即Bell态)作为量子信道,制备成功几率和经典信息消耗都被一一计算出来.就一般情况来说,根据Alice的测量结果,Bob以1/4的几率能够成功实现GHZ态的远程制备.但是,对于三类特殊态,经额外消耗经典信息后其成功几率能够大大提高至1.0.即此方案是决定性的.A remote state preparation （RSP） scheme of a three-qubit Greenberger Home Zeilinger （GHZ） class state was proposed by using three two-qubit maximally entangled states as the quantum channel. The success probability of preparation and classical communication cost were calculated. Generally speaking, according to Alice＇s However, for three 1.0 after consuming classical message, with probability 1/4 Bob could successfully prepare the GHZ state. kinds of special states, the success probability of preparation could be increased to some extra bits. Then the scheme was deterministic.

关 键 词：量子纠缠态 远程态制备 量子隐形传态 量子信道 

分 类 号：O413.1[理学—理论物理]