| 多光子跃迁下二能级原子与NPS态光场相互作用系统的纠缠特性 |
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| 引用本文： | 郭彩丽,萨楚尔夫,李斌.多光子跃迁下二能级原子与NPS态光场相互作用系统的纠缠特性[J].量子电子学报,2017(2):190-195. |
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| 作者姓名： | 郭彩丽 萨楚尔夫 李斌 |
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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： | Natural Science Foundation of Inner Mongolia(内蒙古自然科学基金;2013MS0115)，Tens-Hundreds-Thousands Talent Project Foundation of Inner Mongolia Normal University(内蒙古师范大学“十百千”人才基金项目 |
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| 摘 要： | 利用全量子理论研究了NPS态光场与二能级原子相互作用系统的纠缠特性.计算了系统纠缠度表达式,分析了原子初态、光场相位参数、最大光子数、光场参数和跃迁光子数对系统纠缠特性的影响.结果表明:原子初态处在叠加态且光场相位参数较小时,系统的纠缠度较大;选取合适的最大光子数和跃迁光子数时,光场参数越小,系统纠缠现象越明显.
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| 关 键 词： | 量子光学 NPS态光场 纠缠度 二能级原子 |
Entanglement characteristics in system of two-level atom of multi-photon transition interacting with NPS light field |
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| GUO Caili,Sachuerfu,LI Bin.Entanglement characteristics in system of two-level atom of multi-photon transition interacting with NPS light field[J].Chinese Journal of Quantum Electronics,2017(2):190-195. |
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| Authors: | GUO Caili Sachuerfu LI Bin |
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| Abstract: | Entanglement characteristics in a system of a two-level atom interacting with a number-phase state (NPS) field are investigated by using the fully quantum theory.The entanglement degree expression of the system is calculated.Influences of the initial atomic state,parameters of field phase,largest-photon number,parameters of light field and transition photon number on the system entanglement degree are analyzed.Results show that when the initial atomic state is in superposition state,and the field ph ase parameter is small relatively,the system entanglement degree is large relatively.When the appropriate largest-photon numbers and transitional photon numbers are chosen,the smaller the field parameter is,the more obvious the entanglement phenomenon will be. |
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| Keywords: | quantum optics number-phase state light field entanglement degree two-level atom |
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