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.
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)
关键词
量子通信
双向远程态制备
Bell类超纠缠态
quantum communication
bidirectional remote state preparation
Bell-class hyper-entangled state
