环境噪音下的远程量子态制备与操控网络研究

项目名称： 环境噪音下的远程量子态制备与操控网络研究

项目编号： No.61501129

项目类型： 青年科学基金项目

立项/批准年度： 2016

项目学科： 无线电电子学、电信技术

项目作者： 周萍

作者单位： 广西民族大学

项目金额： 17万元

中文摘要： 网络远程量子态制备与操控在远程量子通信、盲量子计算、分布式量子计算等量子信息任务中具有重要的应用价值。已有的研究主要考虑两点之间的量子态远程制备与操控，且大都是理想信道下的物理模型。本项目致力于网络中实际量子纠缠信号、信道不同程度的噪声与损耗对远程量子信息处理网络的效率影响研究。主要内容有：设计新的与纠缠信号相匹配的远程量子态制备与操控网络实用物理模型，特别是基于实际量子纠缠信号的量子态联合制备和量子态远程操控网络模型；模拟分析量子信道中噪声和损耗对远程量子信息处理网络影响；针对信道不同程度噪声设计新的量子信息纯化方案，特别是噪声环境下基于单粒子系统的量子纠缠纯化方法，并研究提高实际量子信号远程制备保真度的方法，实现理论模型与实验实现的接轨。

中文关键词： 远程量子态制备；量子态远程操控；信道噪声与损耗；广义量子测量；量子网络

英文摘要： Quantum remote state preparation and quantum operation remote implementation plays an important role in quantum information processing, such as long- distance quantum communication, blind quantum computation and distributed quantum computation.Most of the existing remote state preparation protocols concentrate on point-to-point state remote preparation and control based on ideal quantum channel. This project will focus on study the effect of different quantum entanglement signals，quantum channel noises and losses in quantum network on the efficient quantum remote quantum information processing. The main contents of the research include: designing new models for quantum state remote preparation and quantum operation remote implementation according to distributed quantum entanglements in quantum network, especially for joint remote state preparation and quantum operation remote implementation via real quantum entanglement signals; simulating the effect of different quantum channel noises and losses on the quantum communication network；constructing new quantum state purification methods with different quantum entanglement signals and noises ; especially for quantum state purification based on single-particle quantum systems in a noisy channel. Through the project, we want to improving the fidelity for quantum information in quantum communication network, and connect the theoretic models with the experimental application.

英文关键词： quantum state remote preparation;quantum operation remote implementation;channel noise and loss;generalized quantum measure;quantum network