| Superposition of Fock states via adiabatic passage in a coupled four-level atom－cavity system |
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| 引用本文： | 龚尚庆,金石琦,李儒新,郑振勋,徐至展.Superposition of Fock states via adiabatic passage in a coupled four-level atom－cavity system[J].中国物理 B,2004,13(6):860-864. |
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| 作者姓名： | 龚尚庆 金石琦 李儒新 郑振勋 徐至展 |
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| 作者单位： | (1)Laboratory for High Intensity Optics, Shanghai Institute of Optics and Fine Mechanics, Shanghai 201800, China; (2)Weifang Institute of Supervision and Inspection on Product Quality, Weifang 261031, China |
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| 基金项目： | Project supported by the Special Foundation for State Major Basic Research Programme of China (Grant No G1999075200), the Key Programme of the National Natural Science Foundation of China (Grant No 10234030), and the Natural Science Foundation of Shanghai, China (Grant No 03ZR14102). |
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| 摘 要： | We have investigated the behaviour of an atom－cavity system via a stimulated Raman adiabatic passage technique in a four-level system, in which two dark states are present. We find, because of the coherent control field, that a superposition of Fock states can be prepared, even when the cavity is initially not in its vacuum state. This method provides a way to generate arbitrary quantum states of a cavity field.
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| 关 键 词： | 四层原子腔结构 量子电动力学 Fock态叠加 绝热通道 |
| 收稿时间： | 2003-04-24 |
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