Tighter Constraints of Multiqubit Entanglement

作     者：杨龙妹 陈斌 费少明 王志玺 Long-Mei Yang;Bin Chen;Shao-Ming Fei;Zhi-Xi Wang

作者机构：School of Mathematical Sciences Capital Normal University College of Mathematical Science Tianjin Normal University Max-Planck-Institute for Mathematics in the Sciences 

出 版 物：《Communications in Theoretical Physics》 (理论物理通讯（英文版）)

年 卷 期：2019年第71卷第5期

页      面：545-554页

核心收录：

学科分类：07[理学] 070205[理学-凝聚态物理] 0704[理学-天文学] 0702[理学-物理学] 

基　　金：Supported by the National Natural Science Foundation of China under Grant Nos.11805143,11675113 Key Project of Beijing Municipal Commission of Education under Grant No.KZ201810028042 

主　　题：monogamy relation polygamy relation entanglement measure 

摘      要：Monogamy and polygamy relations characterize the distributions of entanglement in multipartite systems.We provide classes of monogamy and polygamy inequalities of multiqubit entanglement in terms of concurrence, entanglement of formation, negativity, Tsallis-q entanglement, and Rényi-α entanglement, respectively. We show that these inequalities are tighter than the existing ones for some classes of quantum states.