| 杂化纠缠系统的纠缠猝死研究 |
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| 引用本文： | 宋玲玲,李燕.杂化纠缠系统的纠缠猝死研究[J].量子电子学报,2017(5):608-615. |
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| 作者姓名： | 宋玲玲 李燕 |
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| 作者单位： | 华东师范大学物理与材料科学学院物理系,上海,200241 |
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| 基金项目： | National Natural Science Foundation of China(国家自然科学基金;11774093)，Natural Science Foundation of Shanghai City(上海市自然科学基金;Chinese Academy of Sciences(中国科学院量子信息重点实验室开放课题 |
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| 摘 要： | 研究了一类杂化纠缠态在两种不同类型退相干信道下的纠缠动力学行为,以及退相干过程中出现的纠缠猝死现象.计算了相位阻尼信道和退极化信道下的纠缠度,并分析了纠缠度随时间的变化.结果表明在相位阻尼信道下不会出现纠缠猝死现象;在退极化信道下杂化纠缠态会经历纠缠猝死,纠缠度在某一特定的时间内衰减为零.
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| 关 键 词： | 量子光学 杂化纠缠 纠缠猝死 退相干 |
Entanglement sudden death of decohered hybrid entangled system |
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| SONG Lingling,LI Yan.Entanglement sudden death of decohered hybrid entangled system[J].Chinese Journal of Quantum Electronics,2017(5):608-615. |
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| Authors: | SONG Lingling LI Yan |
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| Abstract: | The entanglement dynamics behavior of a class of hybrid entangled state in two different quantum channels and entanglement sudden death phenomenon in the process of decoherence are investigated.The entanglement of phase damping channel and depolarization channel is calculated,and the entanglement change with time is analyzed.Results show that the entanglement sudden death phenomenon will not appear in the phase damping channel.The hybrid entangled state will undergo entanglement sudden death in the depolarization channel,and the entanglement will decay to zero within a certain time. |
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| Keywords: | quantum optics hybrid entanglement entanglement sudden death decoherence |
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