基于量子随机行走的两光子Bell态测量  

Two-photon Bell State Measurement Based on Quantum Walk

作　　者：李小曼[1,2] 李大创[1,2] 杨名[1] 曹卓良[1,2] LI Xiaoman LI Dachuang YANG Ming CAO Zhuoliang(School of Physics and Material Science, Anhui University, Hefei 230039, China School of Electronics and Information Engineering, Hefei Normal University, Hefei 230601, China)

机构地区：[1]安徽大学物理与材料科学学院,安徽合肥230039 [2]合肥师范学院电子信息工程学院,安徽合肥230601

出　　处：《合肥师范学院学报》2017年第3期11-14,共4页Journal of Hefei Normal University

基　　金：安徽省学术技术带头人及后备人选科研活动经费资助项目(No.2015H052);安徽高校学科(专业)拔尖人才学术资助重点项目(No.gxbjZD2016078);安徽省高校优秀青年人才支持计划项目;安徽大学研究生创新项目(yqh100012)

摘　　要：量子纠缠态是量子信息和量子通讯领域中的核心资源,实现量子纠缠态中的完全Bell态测量,将对量子信息学的发展有重要的意义。本文,我们基于量子随机行走提出了一种实现双光子Bell态测量的物理方案。基于该方案的操作过程有明显的简化,本方案在实验上具有一定的可行性和指导意义。Quantum entanglement is the central resource in the quantum in^ormation and quantum communication. It will be of great significance for development of quantum information to realize the Bell state measurement. In this paper, we propose a physical scheme for two-photon Bell state measurement based on quantum random walk. The system has many advantages, such as better controllability, so the scheme has a certain feasibility and is instructive for the experiments.

关 键 词：量子随机行走 BELL态 量子信息 量子纠缠 

分 类 号：O413.1[理学—理论物理]