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采用求解薛定谔方程和数值计算方法,研究了V型三能级原子与双模奇偶纠缠相干光场相互作用过程中的光场压缩效应,讨论了压缩效应与双模奇偶纠缠相干光场的纠缠程度、系统失谐量、双模光场的平均光子数和原子基态概率幅的依赖关系。结果表明:光场压缩效应与双模奇偶纠缠相干光场的纠缠程度、失谐量、平均光子数和原子初态相关联:双模纠缠相干光场处于非纠缠状态时的光场压缩量比光场处于纠缠状态时要大;原子处在单纯的基态或激发态时光场都有明显的压缩现象出现;而原子初态中基态和激发态的概率幅较接近时无光场压缩现象;无论光场是否处于纠缠态,只有两模平均光子数接近时,光场才会出现压缩效应。
The Schrodinger equation and numerical calculation method are used to study the squeezing effect of the light field in the interaction between a V-type three-level atom and a two-mode odd-even entangled coherent field. The entanglement between the squeezing effect and the two-mode odd-even entangled coherent field is discussed , The amount of systematic detuning, the average number of photons in the two-mode light field, and the dependence of the probability amplitude of the atomic ground state. The results show that the squeezing effect of light field is related to the degree of entanglement, the amount of detuning, the average number of photons and the initial state of the two-mode odd-even entangled coherent field. When the two-mode entangled coherent field is in a non-entangled state, When the light field is in the entangled state, there is a significant compression phenomenon in the light field when the atoms are in pure ground state or excited state; however, the probability of ground state and excited state in the atomic initial state is close to that of no light field; Whether the light field is in an entangled state, only when the average number of photons in the two modes is close to each other, does the squeezing effect appear in the light field.