通过超纠缠态的双向远程态准备（英文）  

Bidirectional Remote State Preparation via a Hyper-Entangled State

作　　者：彭家寅[1] 

机构地区：[1]内江师范学院数学与信息科学学院

出　　处：《内江师范学院学报》2020年第2期14-19,共6页Journal of Neijiang Normal University

基　　金：国家自然科学基金项目(11071178,11671284);教育部与四川省“数学与应用数学专业综合改革”项目(ZG0464,01249);四川科技厅重大前沿项目(2017JY0197);四川省教育厅项目(15TD0027)

摘　　要：利用双光子Bell类超纠缠态作为量子信道,提出了对称双向远程态制备的协议.在该协议中,两个合法的参与者Alice和Bob可以通过使用单粒子投影测量和适当的Pauli算子,同时为彼此制备所需的单粒子态.在相同的量子信道下,提出了另一种非对称双向远程态制备协议,其中Alice可以远程为Bob制备一个量子态,同时Bob也可以远程为Alice制备所需的两量子态.该非对称协议包含受控非门运算、单量子投影测量和适当的酉变换.By using a bi-photon Bell-class hyper-entangled state as quantum channel,the protocol for the symmetry bidirectional remote state preparation is presented.In this protocol,two legitimate participants,Alice and Bob can simultaneously prepare the desired single-particle states for each other by using single-particle projective measurements and appropriate Pauli operators.With the same quantum channel,another asymmetric bidirectional remote state preparation protocol is also proposed,in which Alice can remotely prepare a single-qubit state for Bob,at the same time,Bob can also remotely prepare the desired two-qubit state for Alice.This asymmetric protocol includes controlled not gate operation,single-qubit projective measurement and appropriate unitary transformation.

关 键 词：量子通信 双向远程态制备 Bell类超纠缠态 

分 类 号：TP301[自动化与计算机技术—计算机系统结构]