【摘要】 本文研究耦合系数随时间线性变化的“V”型三能级原子与双模及单模辐射场的相互作用，运用密度算符方法，借助数值计算，分析了该模型原子能级算符平均值以及辐射场平均光子数的性质，并作出了一些有意义的讨论．更多还原

【Abstract】 In this paper we have studied the interaction of a V--type three--level atom with the radiationfield which the coupling coefficient is time--dependent. By means of the method of density matrix,theproperties of the average values of the atomic level operator,the average photon numbers of fields arediscussed. Many interesting results are analyzed.更多还原