双体量子系统的算子权并发度  

Operator Weighted Concurrence Measure on Two-Qubit Quantum System

作　　者：AUNG Khaing Zaw 刘锴 蒋立宁 AUNG Khaing Zaw;LIU Kai;JIANG Li-ning(School of Mathematics and Statistics, Beijing Institute of Technology, Beijing 100081, China)

机构地区：[1]北京理工大学数学与统计学院,北京100081

出　　处：《北京理工大学学报》2020年第6期687-690,共4页Transactions of Beijing Institute of Technology

基　　金：国家自然科学基金资助项目(11371222)。

摘　　要：在Hilbert空间算子理论基础上,通过量子态的约化密度矩阵给出了双体量子系统中算子权并发度的定义,并讨论了其在判断量子态可分性上的有效性.同时研究了此类加权并发度和系统信道的相容性及相关性质.Based on the operator theory in Hilbert space,the definition of operator weighted concurrence entanglement measure was introduced by means of a reduced matrix of quantum states.The efficiency in identifying the entanglement of a quantum state was also analyzed.Together with some properties,the relation and consistency between the measure and quantum channels was studied in the meantime.

关 键 词：量子纠缠 算子权并发度 量子信道 

分 类 号：O413.1[理学—理论物理]