多光子T-C模型中场熵的演化(英文)  

Entropy evolution of the field in multiphoton Tavis-Cummings model

作　　者：卢道明[1] 

机构地区：[1]武夷学院电子工程系,武夷山354300

出　　处：《原子与分子物理学报》2009年第1期119-124,共6页Journal of Atomic and Molecular Physics

基　　金：福建省新建本科高校新世纪优秀人才支持计划资助项目;福建省自然科学基金(2008J0217)

摘　　要：利用Tavis-Cummings模型研究了耦合二能级原子通过多光子跃迁与相干态光场相互作用系统中场熵的演化规律,讨论了原子间耦合强度和光场初始平均光子数的变化对场熵演化的影响.数值计算结果袁明:场熵的演化受原子间耦合强度和光场初始平均光子数的变化的影响.随光场初始平均光子数的增大,场熵平均值增大.Using Tavis-Cummings model,the entropy evolution of the field in interaction of two coupling two-level atoms with the single mode coherent field through multiphoton transition is studied. The influences of coupling coefficient between atoms and initial mean photon number of field on entropy evolution of the field are discussed. The results obtained by numerical calculations show that with increasing of initial mean photon number of field the average of field-entropy increases,and the influence of coupling coefficient between atoms on entropy evolution of the field is small.

关 键 词：耦合二能级原子 多光子 相干态 场熵演化 

分 类 号：O431.2[机械工程—光学工程]