| Scheme for Concentration of Unknown Greeberger-Horne-Zeilinger Entangled States via Cavity Decay |
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| 作者姓名： | 张小伟 刘翔 唐筱芳 唐有良 |
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| 作者单位： | Department of Physics, Hunan Normal University, Changsha 410081 |
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| 基金项目： | Supported by the National Natural Science Foundation of China under Grant No 10374025, and the Scientific Research Fund of Hunan Provincial Education Department under Grant No 05c415. |
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| 摘 要： |
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| 关 键 词： | 浓度 GHZ 三量子位纠缠系统 测量方法 |
| 收稿时间： | 2006-8-1 |
| 修稿时间： | 2006-08-01 |
Scheme for Concentration of Unknown Greeberger--Horne--Zeilinger Entangled States via Cavity Decay |
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| ZHANG Xiao-Wei,LIU Xiang,TANG Xiao-Fang,TANG You-Liang.Scheme for Concentration of Unknown Greeberger-Horne-Zeilinger Entangled States via Cavity Decay[J].Chinese Physics Letters,2007,24(3):602-605. |
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| Authors: | ZHANG Xiao-Wei LIU Xiang TANG Xiao-Fang TANG You-Liang |
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| Institution: | Department of Physics, Hunan Normal University, Changsha 410081 |
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| Abstract: | We present a scheme for entanglement concentration of an unknown atomic non-maximally entangled GHZ state via cavity decay. In the scheme, the atom trapped in a cavity is manipulated by laser field, so the maximally entangled GHZ state can be obtained by performing certain operation, which can be realized by illuminating the atom in a cavity. Our method is robust against spontaneous atomic decay. |
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| Keywords: | 03 67 Hk 42 50 Dv |
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