摘要
目前,在各种退相干环境中由Horodecki态构成的两个三能级原子系统的可提纯性纠缠得到了广泛的研究。研究了凸线性组合态的可提纯性演化规律。研究结果表明:初始处于自由纠缠的凸线性组合态在有限的时间内会转变成束缚纠缠态,原子系统的可提纯性出现猝死现象。
Recently the distillability entanglement in qutrit-qutrit systems with Horodecki states under various decoherence is studied widely. The regulation of distillability evolution with convex linear combination states is investigated. The result shows that the convex linear combination states which are initially in the free-entangled states become bound-entangled in a finite time, the phenomenon of distillability sudden death appears in the qutrits systems.
出处
《激光与光电子学进展》
CSCD
北大核心
2015年第6期290-295,共6页
Laser & Optoelectronics Progress
基金
国家自然科学基金(11074072
11374096)
广东省教育厅重大科研项目培育计划(Q14606)
关键词
量子光学
三能级原子
可提纯性
凸线性组合态
猝死
quantum optics
qutrit-qutrit
distillability
convex linear combination states
sudden death
