The influence of the external classical field on a correlated two-mode of the electromagnetic field interacting with a three-level atom in the structure is studied. A rotation of the atomic basis is used to remove the classical field terms. The time-dependent wave function is obtained by solving the Schrödinger equation. The influence of the classical field on the phenomenon of revival, collapse, squeezing, and marginal atomic distribution are discussed. In our analysis, the cavity field is prepared in the entangled pair coherent states and the atomic system in the upper state. The results showed that the occupation of the atomic level is significantly affected by the addition of the classical field. The presence of the classical field reduces the squeezing intervals and the extreme values of the atomic marginal distribution.

中文翻译：

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外部经典场存在下与三能级原子相互作用的相关两种模式的原子边际分布及挤压现象

外部经典场对与三能级原子相互作用的相关二模电磁场的影响结构进行了研究。原子基础的旋转用于去除经典的场项。随时间变化的波函数是通过求解薛定谔方程得到的。讨论了经典场对复兴、崩溃、挤压和边缘原子分布现象的影响。在我们的分析中，腔场是在纠缠对相干态和上态原子系统中制备的。结果表明，经典场的加入显着影响了原子能级的占据。经典场的存在减少了挤压间隔和原子边缘分布的极值。