项目名称: 量子关联在量子信息处理中的作用和在开放系统中的演化研究
项目编号: No.11305105
项目类型: 青年科学基金项目
立项/批准年度: 2014
项目学科: 数理科学和化学
项目作者: 李波
作者单位: 上饶师范学院
项目金额: 20万元
中文摘要: 量子关联是近年来量子信息学发展的热点领域之一,它与量子计算、量子信息处理以及量子力学中许多基本问题都有密切联系。在本项目中我们将研究量子关联作为资源在量子信息处理中的作用,特别强调区别于传统认为量子纠缠在量子信息中的作用, 考虑没有纠缠但是有量子关联的辅助态分辨、量子关联在诸如量子隐形传态以及量子克隆等量子信息处理中的作用。本项目的另一个研究主题是考虑量子关联在开放系统演化时的跳变问题。对于不同的关联,它的跳变条件是不一样的。我们将研究量子失协、几何度量、以及相对熵量子关联在开放系统下演化的跳变条件
中文关键词: 量子关联;量子失协;不确定关系;量子态区分;弱测量
英文摘要: Quantum correlation is one of the most hottesd fields in recent years. It is closely related to quantum computation, quantum information processing and many essential questions in quantum mechanics. During this project, we will study quantum correlation in the role of quantum information processing. Especially, the stress on quantum correlation different from entanglement in the role of quantum information processing. For example, we study assisted state discrimination without entanglement, the role of quantum correlation in quantum teleportation and quantum cloning. Another subject we conseder in this project is that the dynamics of quatnum correlation in open quantum system, we consider the sudden change of quantum correlation. The sudden change condition is diferent for every quantum correlation. We will study the sudden change of quantum discord, the geometry of quantum discord and relative entropy quantum correlation etc. in open quantum system.
英文关键词: quantum correlation;quantum discord;uncertainty relation;discrimination;weak measurement