Optimized monogamy and polygamy inequalities for multipartite qubit entanglement  

作　　者：Jia-Bin Zhang Zhi-Xiang Jin Shao-Ming Fei Zhi-Xi Wang 张嘉斌;靳志祥;费少明;王志玺(School of Mathematical Sciences,Capital Normal University,Beijing 100048,China;School of Physics,University of Chinese Academy of Sciences,Beijing 100049,China)

机构地区：[1]School of Mathematical Sciences,Capital Normal University,Beijing 100048,China [2]School of Physics,University of Chinese Academy of Sciences,Beijing 100049,China

出　　处：《Chinese Physics B》2021年第10期154-164,共11页中国物理B（英文版）

基　　金：supported by the National Natural Science Foundation of China(Grant Nos.12075159 and 11847209);Beijing Natural Science Foundation(Grant No.Z190005);Academy for Multidisciplinary Studies,Capital Normal University,the Academician Innovation Platform of Hainan Province,Shenzhen Institute for Quantum Science and Engineering,Southern University of Science and Technology(Grant No.SIQSE202001);the China Postdoctoral Science Foundation funded project(Grant No.2019M650811);the China Scholarship Council(Grant No.201904910005).

摘　　要：We investigate the monogamy and polygamy inequalities of arbitrary multipartite quantum states,and provide new classes of monogamy and polygamy inequalities of multiqubit entanglement in terms o f concurrence,entanglement of formation,negativity,and Tsallis-q entanglement,respectively.We show that these new monogamy and polygamy inequality relations are tighter than the existing ones with detailed examples.

关 键 词：monogamy inequalities polygamy inequalities entanglement measures 

分 类 号：O413[理学—理论物理]