PT对称Bell态的经典纠缠与CPT纠缠  

Classical Entanglement and CPT Entanglement of PT Symmetric Bell States

作　　者：李晓玉 勇鑫蕾 陶元红[1] LI Xiaoyu;YONG Xinlei;TAO Yuanhong(Department of Mathematics, College of Science, Yanbian University, Yanji 133002, Jilin Province, China)

机构地区：[1]延边大学理学院数学系,吉林延吉133002

出　　处：《吉林大学学报（理学版）》2018年第3期703-707,共5页Journal of Jilin University:Science Edition

基　　金：国家自然科学基金(批准号:11761073)

摘　　要：研究4个宇称-时间(PT)对称Bell态在经典Hermite条件下的纠缠问题.结果表明:在4个PT对称Bell态中,Φ_-〉和Ψ_-〉仍为经典量子态,且在经典量子Hermite内积下仍为最大纠缠态;Φ_+〉和Ψ_+〉不再总是经典量子态,将其在Hermite内积下进行规范化后的经典量子态也不再总是Hermite内积下的最大纠缠态.We studied the classical entanglement problem of four parity-time（PT）symmetric Bell states under Hermitian conditions.The results show that among the four PT symmetric Bell states,Φ-〉and Ψ-〉are still classical quantum states,and are still maximally entangled states under Hermitian inner product;whereas Φ＋〉and Ψ＋〉are no longer always classical quantum states,and the classical quantum states normalized by Hermitian inner product are no longer always maximally entangled states under Hermitian inner product.

关 键 词：PT对称性 BELL态 纠缠 熵 CPT内积 

分 类 号：O413[理学—理论物理]