任意三粒子的量子态共享与任意四粒子态的远程制备

发布时间：2018-01-29 01:15

本文关键词： 量子隐形传态远程态的制备量子态共享量子纠缠量子信道　出处：《新疆师范大学》2017年硕士论文　论文类型：学位论文

【摘要】：量子理论是物理学上跨时代的进展,使人们对于微观的世界有了全新的认识。随着当前社会科学的进步和人们生活质量的日益提高,二十一世纪的人们对信息的需求也日益增加。因为量子自身一些奇妙的特性,在信息的范畴中有着独特的功能,如信息的运算速率、信息的安全、还有信息的容量和检测精度等方面都可以打破现今经典信息的壁垒,所以在上个世纪八十年代以量子理论为基础,作为量子力学与信息科学相结合的交叉性学科——量子信息学逐渐形成,并以其独特的性质成为研究的热点,且分为量子通信和量子计算两大板块。本文首先提出了一种通过使用三个贝尔对和GHZ态作为量子信道在三者间实现任意未知三粒子态的共享,进而实现量子通信的信息传输方案。随着量子信息学理论的快速发展,对于量子信息传输过程中所需的经典资源,也不得不考虑其消耗。量子远程制备(RSP)作为量子通信一个分支,刚好可以节约所需要资源消耗,所以自远程制备的提出,就得到了广泛的关注,各种制备方案被提出,建立起一个量子远程制备的大厦。在这里我们提出以十六个正交基测量的形式,来进行任意四粒子态远程制备的方案。整篇论文内容如下所示,分为五章:第一章引言主要介绍量子信息学的产生背景以及简介,并陈述了量子隐形传态与量子远程制备的研究进展和价值及量子远程制备的优越性。第二章主要内容为量子力学及量子信息学方面的的基本理论。重点介绍了量子比特的基本性质;对纠缠态的概念进行了称述,并给出了几种常见的纠缠态形式。在本章后两节分别介绍了量之隐形传态和量子远程制备的基本理论与之相应的典型方案,同时也介绍了后者的优势。整章内容的介绍是为了后两章的研究作铺垫。第三章提出了一种通过使用三个贝尔对和GHZ态作为量子信道,来实现三方之间共享任意未知的三粒子态的方案。第四章我们提出采用两个四量子比特的组成的纠缠态作为量子信道,建立十六个正交测量基,来进行四粒子态远程制备的方案。第五章主要为全文作出总结,并展望了量子通信的美好前景。
[Abstract]:Quantum theory is a cross-epoch development in physics, which makes people have a new understanding of the micro-world. With the progress of social science and the improvement of people's quality of life. In 21th century, the demand for information also increased day by day. Because of some wonderful characteristics of quantum itself, it has unique functions in the category of information, such as the speed of information calculation, the security of information. There are also information capacity and detection accuracy can break down the barriers to classical information, so in -20s based on quantum theory. Quantum informatics, as a cross subject of quantum mechanics and information science, has gradually formed, and has become a hot research topic with its unique properties. It is divided into two parts: quantum communication and quantum computing. In this paper, we first propose an arbitrary unknown three-particle state sharing between the three by using three Bell pairs and GHZ states as quantum channels. With the rapid development of quantum information theory, the classical resources are needed in the process of quantum information transmission. As a branch of quantum communication, quantum remote preparation (RSP), which can save the required resource consumption, has been widely concerned. Various preparation schemes have been proposed to establish a building for quantum remote fabrication. Here we propose sixteen orthogonal basis measurements. The whole paper is as follows: the first chapter introduces the background and introduction of quantum information. The research progress and value of quantum teleportation and quantum remote preparation and the advantages of quantum remote preparation are described. The second chapter focuses on the basic theories of quantum mechanics and quantum informatics. The basic properties of subbits; The concept of entangled state is described, and several common entangled states are given. In the last two sections of this chapter, the basic theory of quantum teleportation and quantum remote preparation are introduced respectively. At the same time, the advantages of the latter are introduced. The whole chapter is introduced for the research of the latter two chapters. In chapter 3, a quantum channel using three Bell pairs and GHZ states is proposed. In chapter 4th, we propose to use two entangled states of four qubits as quantum channels to establish sixteen orthogonal measurement bases. Chapter 5th summarizes the whole paper and looks forward to the bright future of quantum communication.
【学位授予单位】：新疆师范大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：O413

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