Determining Separability with Entanglement of Formation and Entanglement Sudden Death  

作　　者：陈小余 

机构地区：[1]College of Information and Electronic Engineering,Zhejiang Gongshang University

出　　处：《Chinese Physics Letters》2015年第1期1-4,共4页中国物理快报（英文版）

基　　金：Supported by the National Natural Science Foundation of China under Grant Nos 11375152 and 60972071;the Key Laboratory of New Network Standards and Technologies of Zhejiang Province under Grant No 2013E10012

摘　　要：An algorithm is developed to calculate the entanglement of formation for bipartite quantum states to determine numerically the sufficient condition of separability. The algorithm is applied to two 3 × 3 positive partial transpose states mixed with white noise. For these two noisy states, our numerical sufficient conditions of separability are not far from the best necessary conditions of separability.An algorithm is developed to calculate the entanglement of formation for bipartite quantum states to determine numerically the sufficient condition of separability. The algorithm is applied to two 3 × 3 positive partial transpose states mixed with white noise. For these two noisy states, our numerical sufficient conditions of separability are not far from the best necessary conditions of separability.

关 键 词：Determining Separability with Entanglement of Formation and Entanglement Sudden Death 

分 类 号：O413.1[理学—理论物理]