| 高斯型耦合多光子Tavis-Cummings模型中场与原子的纠缠特性 |
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| 引用本文： | 张学光,萨楚尔夫,冯川,李红星.高斯型耦合多光子Tavis-Cummings模型中场与原子的纠缠特性[J].量子光学学报,2012,18(3):256-261. |
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| 作者姓名： | 张学光 萨楚尔夫 冯川 李红星 |
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| 作者单位： | 1. 内蒙古师范大学物理与电子信息学院,内蒙古呼和浩特,010022
2. 内蒙古师范大学物理与电子信息学院,内蒙古呼和浩特 010022;内蒙古师范大学图书馆,内蒙古呼和浩特 010022 |
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| 基金项目： | 内蒙古自然科学基金(2009MS0112); 内蒙古师范大学研究生科研创新基金(CXJJS10036) |
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| 摘 要： | 利用全量子理论,研究了多光子跃迁过程高斯型耦合Tavis-Cummings模型中场与原子的纠缠特性。讨论了多光子原子运动速度、光场初态的平均光子数及跃迁光子数对场与原子之间纠缠特性的影响。结果表明:原子运动速度的变化改变了场熵演化曲线的振荡时域;光场初态影响场熵演化曲线的周期性;跃迁光子数的增加使场熵演化曲线的振荡频率和场与原子之间的平均纠缠度变大。
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| 关 键 词： | 量子光学 多光子Tavis-Cummings模型 高斯型耦合 量子纠缠 |
| 收稿时间： | 2012/4/19 |
The Entangled Properties of Field and Two Atoms in Tavis-Cummings Model with Multi-Photon Gaussian Coupling |
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| ZHANG Xue-guang
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Sachuerfu
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FENG Chuan
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LI Hong-xing.The Entangled Properties of Field and Two Atoms in Tavis-Cummings Model with Multi-Photon Gaussian Coupling[J].Acta Sinica Quantum Optica,2012,18(3):256-261. |
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| Authors: | ZHANG Xue-guang Sachuerfu FENG Chuan LI Hong-xing |
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| Institution: | 1(1.College of Physics and Electronic Information,Inner Mongolia Normal University,Inner Mongolia Huhhot 010022,China;2.Library of Inner Mongolia Normal University,Inner Mongolia Huhhot 010022,China) |
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| Abstract: | The properties of entanglement evolution between field and two atoms in Gaussian coupling Tavis-Cummings model in the multi-photon transition process are studied on the quantum theory. The influence on the properties of entanglement evolution between field and two atoms from atomic motion, the mean photon number in initial states of the light field, number of transition photons in the multi-photon transition process are discussed. The results show that the variation of atomic motion changes the time for the effective action to the evolution of field entropy. Initial states of the light field affect the evolution period to field entropy. With the increasing of the number of transition photons, the oscillation frequency and the mean degree of entanglement between field and atoms become larger. |
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| Keywords: | quantum optics multi-photon Tavis-Cummings model Gaussian coupling quantum en-tanglement |
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