Entanglement polygon inequalities for a class of mixed states  

作　　者：Xian Shi 石现(College of Information Science and Technology,Beijing University of Chemical Technology,Beijing 100029,China)

机构地区：[1]College of Information Science and Technology,Beijing University of Chemical Technology,Beijing 100029,China

出　　处：《Chinese Physics B》2024年第11期218-222,共5页中国物理B（英文版）

基　　金：Project supported by the National Natural Science Foundation of China(Grant No.12301580).

摘　　要：The study on the entanglement polygon inequality of multipartite systems has attracted much attention.However,most of the results are on pure states.Here we consider the property for a class of mixed states,which are the reduced density matrices of generalizedW-class states in multipartite higher dimensional systems.First we show the class of mixed states satisfies the entanglement polygon inequalities in terms of Tsallis-q entanglement,then we propose a class of tighter inequalities for mixed states in terms of Tsallis-q entanglement.At last,we get an inequality for the mixed states,which can be regarded as a relation for bipartite entanglement.

关 键 词：entanglement polygon INEQUALITY W-class states Tsallis-q entanglement 

分 类 号：O413[理学—理论物理]