利用部分纠缠态确定性实现量子远程态制备

摘要

A scheme is proposed for remotely preparing a state exactly via any pure shared entangled state with entangle- ment-assistance under local operations and classical communi- cation. This scheme consists of a generalized measurement described by a positive operator-valued measure (POVM), one- way classical communication, and corresponding unitary opera- tions. Firstly, the case of a 2-dimensional partially entangled channel is discussed, and then generalizes this scheme to higher-dimensional case.%提出了一种利用局域操作和经典通讯经由任一纠缠纯态与辅助纠缠态远程实现量子态制备的方案.该方案由一个广义测量(即正定算符值测量,简称POVM)、单边经典通讯和相应的幺正操作来完成.首先,讨论了两维部分纠缠态作通道的情形,然后将其推广到高维粒子纠缠态的情况.