多光子T-C模型中场熵的演化

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。数值计算结果表明: 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。

Entropy evolution of the field in multiphoton Tavis-Cummings model

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.