| 三耦合腔系统双光子过程中的纠缠特性 |
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| 引用本文： | 卢道明.三耦合腔系统双光子过程中的纠缠特性[J].光学学报,2013,33(1):127001-234. |
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| 作者姓名： | 卢道明 |
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| 作者单位： | 卢道明:武夷学院电子工程系, 福建 武夷山 354300
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| 基金项目： | 福建省自然科学基金(2011J01018)资助课题。 |
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| 摘 要： | 研究腔与腔之间通过双光子过程耦合的三耦合腔系统,考虑每个腔囚禁一个二能级原子,并且原子通过双光子跃迁过程与腔场共振相互作用的情况。采用负本征值来度量两个子系统间的纠缠,利用数值计算方法研究了系统中两个子系统间的纠缠动力学特性。讨论了腔场间耦合系数变化对两个子系统间纠缠特性的影响。研究发现,随腔场间耦合系数的增大,两原子间的纠缠增强,两腔场间的纠缠减弱。
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| 关 键 词： | 量子光学 三耦合腔 双光子过程 量子纠缠 |
| 收稿时间： | 2012/8/20 |
Entanglement Properties of Two-Photon Process in Three Coupling Cavities |
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| Lu Daoming.Entanglement Properties of Two-Photon Process in Three Coupling Cavities[J].Acta Optica Sinica,2013,33(1):127001-234. |
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| Authors: | Lu Daoming |
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| Institution: | Lu Daoming (Department of Electronic Engineering,Wuyi University,Wuyishan,Fujian 354300,China) |
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| Abstract: | Three identical cavities are considered each of which contains one two-level atom with the two cavities coupled via a two-photon hopping interaction. Negativity is used to quantify the degree of entanglement. By means of the numerical calculations, the evolution of the entanglement between atoms or between cavities has been investigated. The influence of cavity-cavity coupling coefficient on the entanglement is discussed. The results show that the entanglement between atoms is strengthened, and that between cavities is weakened with cavity-cavity coupling coefficient increasing. |
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| Keywords: | quantum optics three coupling cavities two-photon process quantum entanglement |
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