量子通信网络及其路径优化中的若干问题

项目名称： 量子通信网络及其路径优化中的若干问题

项目编号： No.61473199

项目类型： 面上项目

立项/批准年度： 2015

项目学科： 自动化技术、计算机技术

项目作者： 姜敏

作者单位： 苏州大学

项目金额： 82万元

中文摘要： 当前，量子通信技术理论和实验的发展日新月异，对量子通信网络的架构、协议及算法的研究日益成为关注热点。在加强量子通信网络中云计算中心服务器性能和弱化对客户端本身技术能力需求的前提下，本项目拟对量子通信网络中的重要协议进行研究，通过优化组合不同形式的量子信道，给出经由多中继完成任意能级量子态的远程制备方法及其量子线路的设计；考察一般能级的量子体系，利用非最大纠缠纯态信道或者混态信道，经由多中继,完成局域量子操作的最优远程实现和非局域量子操作的最优局域实现；在选择客户端之间进行通信的中继路径时，采用路由跳数、星地信道状况、纠缠资源和信道建立时间等实际指标作为多维约束参数，给出基于量子通信网络的多目标路径优化算法。本项目的研究成果将为量子通信网络提供新的分析和综合思路,挖掘网络环境下信息转移规律以及最优量子远程操作的策略，最终形成工程上易于理解、操作和应用的量子通信网络若干重要算法和协议。

中文关键词： 量子网络；量子控制；路由优化；量子操作；量子线路

英文摘要： Nowadays, much attention has been paid on the quantum communitation technology in both its theoretical and experimental aspects. There is an increasing concern on its architecture, protocols and algorithms.In this project, in the context of of strengthing the information processing capabilities of the cloud servers and weakening the requriments for the preformance of client nodes, we will address several key issues on distributed quantum communication networks. First, combining with various channels via multi relay nodes, we will present a scheme for remote state preparation of general high dimensional quantum states and its circuit design. Second, with the high dimensional non-maximally entangled state or mixed stats as quantum channels linked between multi relay nodes, we will propose an optimized and general scheme for remote implemention of local quantum operations and local implementation of nonlocal quantum operations. Third, in the case of clients equipped with limited technology linked by multi relay nodes and cloud servers, we will explore how to utilize the cloud servers help both clients communicate with each other. Last, when selecting the best relay paths between the clients, with several key indicators such as routing hops, ground-air channel conditions, entanglement resource and channel setup time as the constraints adopted, we will present a multi-objective optimization algorithm in the quantum communication network. Our project aims to provide new insights into the quantum communication network which leads to obtain the information transform rule and the optimized scheme for quantum remote operation under consideration of network. Finally several key algorithms and protocols on quantum communication network are established in a clear, flexible and economic manner.

英文关键词： quantum network;quantum control;routing optimization;quantum operation;quantum circuit