| Quantum entanglement in the system of two two-level atoms interacting with a single-mode vacuum field |
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| 作者姓名： | 曾可 方卯发 |
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| 作者单位： | Department of Physics, Hunan Normal University, Changsha 410081, China;Department of Applied Physics and Electronic Technology, Changsha University, Changsha 410003, China;Department of Physics, Hunan Normal University, Changsha 410081, China |
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| 基金项目： | Project supported by the National Natural Science Foundation of China (Grant No 10374025). |
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| 摘 要： |
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| 关 键 词： | 量子纠缠 原子作用 单模式真空场 熵 |
| 收稿时间： | 2005-04-25 |
| 修稿时间： | 6/8/2005 12:00:00 AM |
Quantum entanglement in the system of two two-level atoms interacting with a single-mode vacuum field |
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| Zeng Ke and Fang Mao-Fa.Quantum entanglement in the system of two two-level atoms interacting with a single-mode vacuum field[J].Chinese Physics B,2005,14(10):2009-2013. |
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| Authors: | Zeng Ke and Fang Mao-Fa |
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| Institution: | Department of Physics, Hunan Normal University, Changsha 410081, China; Department of Physics, Hunan Normal University, Changsha 410081, China;Department of Applied Physics and Electronic Technology, Changsha University, Changsha 410003, China |
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| Abstract: | The entanglement properties of the system of two two-level atoms interacting with a single-mode vacuum field are explored. The quantum entanglement between two two-level atoms and a single-mode vacuum field is investigated by using the quantum reduced entropy; the quantum entanglement between two two-level atoms, and that between a single two-level atom and a single-mode vacuum field are studied in terms of the quantum relative entropy. The influences of the atomic dipole--dipole interaction on the quantum entanglement of the system are also discussed. Our results show that three entangled states of two atoms--field, atom--atom, and atom--field can be prepared via two two-level atoms interacting with a single-mode vacuum field. |
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| Keywords: | quantum entanglement single mode vacuum field reduced entropy relative entropy |
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