| 纠缠相干态的纠缠浓缩 |
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| 引用本文： | 蔡新华,彭光含,乔闹生.纠缠相干态的纠缠浓缩[J].光子学报,2011(8):1244-1247. |
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| 作者姓名： | 蔡新华 彭光含 乔闹生 |
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| 作者单位： | 湖南文理学院物理与电子科学学院; |
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| 基金项目： | The Natural Science Foundation of Hunan Province(No.09JJ3004) |
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| 摘 要： | 利用线性光学元器件对光场量子态进行操纵,可以实现远程的量子纠缠调控和量子通讯.通过分析光学分束器对相干态光场的作用,发现当初始光场态是两个两部分纠缠态的直乘时,让其中的两模通过光学分束器作用后再对其进行光子计数,另外两模将会塌缩到新的纠缠态.基于这个特点,提出了一个实现部分纠缠相干态纠缠浓缩的方案.在这个方案中,两个部...
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| 关 键 词： | 纠缠相干态 纠缠浓缩 光束分离器 光子探测 |
Entanglement Concentration of Entangled Coherent States |
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| CAI Xin-hua,PENG Guang-han,QIAO Nao-sheng.Entanglement Concentration of Entangled Coherent States[J].Acta Photonica Sinica,2011(8):1244-1247. |
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| Authors: | CAI Xin-hua PENG Guang-han QIAO Nao-sheng |
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| Institution: | CAI Xin-hua,PENG Guang-han,QIAO Nao-sheng(College of Physics and Electronics,Hunan University of Arts and Science,Changde,Hunan 415000,China) |
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| Abstract: | With linear optical components to manipulate quantum states of optical fields,the quantum entanglement control and quantum communication can be implemented remotely.By analyzing optical splitter and its use of coherent states,it was found that when the initial state was a direct product of two partially entangled coherent states;another two modes would collapse to a new entangled state using optical splitter and photon-detectors on two modes.Based on this feature,the scheme on entanglement concentration was... |
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| Keywords: | Entangled coherent state Entanglement concentration Beam-splitters Detection of photon |
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