基于Bell态信道直接远程制备任意二量子比特态

量子电子学报 ›› 2020, Vol. 37 ›› Issue (2): 188-195.

基于Bell态信道直接远程制备任意二量子比特态

陈遵一,侯奎

安徽建筑大学数理学院，安徽合肥 230601

收稿日期:2019-10-12 修回日期:2019-11-14 出版日期:2020-03-28 发布日期:2020-03-28
通讯作者: 陈遵一 E-mail:chzy@ahjzu.edu.cn
作者简介:陈遵一（1978-），安徽六安人，硕士，讲师，主要从事量子信息与量子计算方面的研究。 E-mail：chzy@ahjzu.edu.cn
基金资助:
Supported by Natural Science Foundation of Anhui Provincial Education Department（安徽省教育厅自然科学基金一般项目，KJ2018JD20），Higher Education Quality Engineering Project of Anhui Province（安徽省高等学校质量工程项目，2017jyxm0350）

Deterministic remote preparation of arbitrary two-qubit states Via Bell states channel

CHEN Zunyi, HOU Kui

Department of Mathematics and Physics, Anhui JianZhu University, Hefei 230601, China

Received:2019-10-12 Revised:2019-11-14 Published:2020-03-28 Online:2020-03-28

摘要/Abstract

摘要： 提出了两种基于Bell态量子信道的直接远程制备任意复系数二量子比特态的方案。第一个为控制远程制备方案，发送方可以以一定的概率使两个接收方中的任意一位获得初始态，此过程发送方需执行三粒子投影测量和控制方Hadamard门操作。在第二个方案中，初始态的信息由两个独立的发送方共享，当且仅当两个发送方合作，接收方才可在其粒子上重建初始态，此方案需要执行四粒子投影测量。结果表明，两种方案的总成功概率均可达1，方案中的量子资源仅是最简单的Bell纠缠态，且整个操作过程简化灵活。

关键词: Bell态信道, 任意二量子比特, 直接远程制备, 控制远程制备

Abstract: Two schemes for deterministic remotely preparing an arbitrary two-qubit state with complex coefficients using Bell states as the quantum channel are proposed in this work. In the first scheme, the sender can help either one of the two receivers to remotely prepare the original state with the appropriate probability. And in this process, the sender needs to perform three-particle projective measurement and the controller needs to perform Hadamard gate operation. In the second scheme, two senders independently share the classical knowledge of a quantum state, and the receiver can reconstruct the original state if and only if all the senders collaborate with each other. The four-particle projective measurement is needed in this process. It is shown that the total successful probability of the two schemes can reach 1. Moreover, the quantum resource in the two schemes is only the simplest entangled Bell state, and the whole operation process is simple and flexible.

Key words: Bell states channel, arbitrary two-qubit state, deterministic remoter state preparation, controlled remote preparation

中图分类号:

O431

陈遵一侯奎. 基于Bell态信道直接远程制备任意二量子比特态[J]. 量子电子学报, 2020, 37(2): 188-195.

CHEN Zunyi, HOU Kui . Deterministic remote preparation of arbitrary two-qubit states Via Bell states channel[J]. Chinese Journal of Quantum Electronics, 2020, 37(2): 188-195.

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