Sharp continuity bounds for entropy and conditional entropy  

作　　者：ZhiHua Chen ZhiHao Ma Ismail Nikoufar Shao-Ming Fei 

机构地区：[1]Department of Applied Mathematics, Zhejiang University of Technology, Hangzhou 310014, China [2]School of Mathematical Sciences, Shanghai Jiaotong University, Shanghai 200240, China [3]Department of Mathematics, Payame Noor University, Tehran 19395-3697, Iran [4]School of Mathematical Sciences, Capital Normal University, Beijing 100048, China [5]Max-Planck-Institute for Mathematics in the Sciences, Leipzig 04103, Germany

出　　处：《Science China(Physics,Mechanics & Astronomy)》2017年第2期64-68,共5页中国科学：物理学、力学、天文学（英文版）

基　　金：supported by the National Natural Science Foundation of China(Grant Nos.11371247,11275131,11675113,and 11571313)

摘　　要：The von Neumann entropy captures many operational quan- tities in the quantum information theory such as quantum ca- pacity of the communication channel. Von Neumann entropy is continuous and is represented by Fannes inequality, which was originally given in ref. [1]. Quantum correlations such as entanglement and quantum discord etc., are important resources in quantum information processing. In the last year enormous progress on the generation, concentration,The von Neumann entropy captures many operational quantities in the quantum information theory such as quantum capacity of the communication channel.Von Neumann entropy is continuous and is represented by Fannes inequality,which was originally given in ref.[1].Quantum correlations such as entanglement and quantum discord etc.,are important resources in quantum information processing.In the last year enormous progress on the generation,concentration,detection and quantification of entanglement has been

关 键 词：条件熵 量子信息理论 量子信息处理 通信信道 量子纠缠 量子关联 多操作 不等式 

分 类 号：O413[理学—理论物理] O414.11[理学—物理]