通过建立二能级原子与增光子相干态光场相互作用的多光子Janes—Cumming模型,用数值模拟方法研究原子布居概率随增光子数m的变化特性,并讨论了原子偶极矩正交分量的压缩效应.计算结果表明,在增光子数m增大时(M≤2),原子布居概率随时间变化呈现周期性的塌缩与恢复,而原子偶极矩分量在增光子数m=1,2时产生压缩.
By founding multiphoton Janes-Cumming model of a two-level atom interacting with photon-added coherent light, the atomic inversion is studied with using the technique of numerical simulation when the photon-added number m changes (m≤2). And the squeezing effect of two quadrature components of the atomic dipole is discussed. The result shows that the revival-collapse phenomenon appearing in the evolution of atomic inversion presents periodicity with the number rn increasing; and the squeezing phenomena of atomic dipole moment have been generated when m = 1,2.