Monogamy and polygamy relations of multiqubit entanglement based on unified entropy

被引：0

作者：

靳志祥 ^{[1
]}

乔从丰 ^{[1
,2
]}

机构：

[1] School of Physics University of Chinese Academy of Sciences

[2] CAS Center for Excellence in Particle Physics

来源：

Chinese Physics B | 2020年 / 29卷 / 02期

基金：

中国国家自然科学基金; 中国博士后科学基金;

关键词：

quantum monogamy; quantum polygamy; unified entropy;

D O I：

暂无

中图分类号：

O413 [量子论];

学科分类号：

070201 ;

摘要：

Monogamy relation is one of the essential properties of quantum entanglement,which characterizes the distribution of entanglement in a multipartite system.By virtual of the unified-(q,s) entropy,we obtain some novel monogamy and polygamy inequalities in general class of entanglement measures.For the multiqubit system,a class of tighter monogamy relations are established in term of the a-th power of unified-(q,s) entanglement for a> 1.We also obtain a class of tighter polygamy relations in the β-th(0≤β≤1) power of unified-(q,s) entanglement of assistance.Applying these results to specific quantum correlations,e.g.,entanglement of formation,Renyi-q entanglement of assistance,and Tsallisq entanglement of assistance,we obtain the corresponding monogamy and polygamy relations.Typical examples are presented for illustration.Furthermore,the complementary monogamy and polygamy relations are investigated for theα-th(0≤α≤1) and β-th(β≥1) powers of unified entropy,respectively,and the corresponding monogamy and polygamy inequalities are obtained.

引用

页码：153 / 160

页数：8