基于非广延熵纠缠平方的严格单配性不等式  

Tighter Monogamy Inequality for Squared Tsallis-q Entanglement

作　　者：苑光明 王学文 董明慧 白志明[2] 刘恩超 YUAN Guangming;WANG Xuewen;DONG Minghui;BAI Zhiming;LIU Enchao(Department of Basic Courses,Qilu Institute of Technology,Jinan,Shandong 250200,China;School of Science,Hebei University of Science and Technology,Shijiazhuang,Hebei 050018,China)

机构地区：[1]齐鲁理工学院基础部,山东济南250200 [2]河北科技大学理学院,河北石家庄050018

出　　处：《计算物理》2020年第6期745-749,共5页Chinese Journal of Computational Physics

基　　金：Foundation of Qilu Institute of Technology(JG201858)。

摘　　要：非广延熵纠缠是一种很好的纠缠度量方式,其本身在参数q∈[2,3]范围服从严格单配性关系.我们提出基于非广延熵纠缠平方服从的严格单配性关系,将参数范围扩展至q∈[(5-√13)/2,(5+√13)/2].该单配性关系更加严格,比非广延熵纠缠的严格单配性不等式成立范围更广.Tsallis-q entanglement is a well-known entanglement measures which obeys a tighter monogamy inequality with q∈[2,3].We extend the range of q for analytic formula of Tsallis-q entanglement to q∈[(5-√13)/2,(5+√13)/2],and prove that it is a tighter monogamy inequality of quantum entanglement in terms of squared Tsallis-q entanglement.It is tighter than existing ones,and the range of q become broader than tighter monogamy inequality using Tsallis-q entanglement.

关 键 词：量子光学 纠缠 单配性 非广延熵纠缠 

分 类 号：O431.2[机械工程—光学工程]