| Quantum State Transfer between Two Distant Atoms by Connecting Two Cavities via Optical Fibres |
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| 作者姓名： | 欧永成 袁春华 张智明 |
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| 作者单位： | [1]Department of Physics, Shanghai Jiao Tong University, Shanghai 200240 [2]Institute of Information and Optoelectronics, South China Normal University, Guangzhou 510631 |
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| 基金项目： | Supported by the National Natural Science Foundation of China under Grant Nos 60578055 and 60178001. |
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| 摘 要： |
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| 关 键 词： | 量子论 状态转换 光纤 双空腔谐振器 |
| 收稿时间： | 2005-06-09 |
| 修稿时间： | 2005-06-09 |
Quantum State Transfer between Two Distant Atoms by Connecting Two Cavities via Optical Fibres |
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| OU Yong-Cheng, YUAN Chun-Hua, ZHANG Zhi-Ming.Quantum State Transfer between Two Distant Atoms by Connecting Two Cavities via Optical Fibres[J].Chinese Physics Letters,2005,22(12):3001-3004. |
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| Authors: | OU Yong-Cheng YUAN Chun-Hua ZHANG Zhi-Ming |
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| Abstract: | A scheme is proposed to unconditionally implement state transfer between two distant atoms by sending the atoms across two distant cavities connected via an optical fibre, respectively. The field state, which preserves the information about the first atom, is transmitted from one cavity to the other along the fibre. A Faraday rotator integrated in the fibre can be designed to completely stop the fields reflected from the second cavity, thus after the field interacts with the second atom for a defined time, the state transfer can be accomplished with unit efficiency. |
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