克尔介质中纠缠光与三能级原子作用的光子统计

采用求解薛定谔方程和数值计算方法，研究了克尔介质中双模纠缠相干光场与三能级原子相互作用系统的光子统计性质，分析了双模纠缠相干光场的纠缠程度、克尔介质与光场的耦合强度、双模光的平均光子数和原子基态概率幅对光子统计性质的影响。结果表明：双模纠缠相干光场的纠缠程度对光子统计性质没有明显的影响；克尔效应增强使光子统计性质的时闻演化曲线的振荡频率变大、振荡幅度变小；当保持场模1的平均光子数不变而场模2的平均光子数变小时，光子统计性质的时间演化曲线的振荡幅度变大。

The Statistics of Photon of Entangled Fields Interacting with a Three-Level Atom in Kerr Medium

The statistic properties of photon in the system of a two-mode entangled coherent fields interacting with a V-type three-level atom in Kerr medium are investigated by solving Schr??dinger equation and numerical calculations. The effects on the statistic properties of photon induced by the degree of entanglement of the two-mode entangled coherent fields, the coupling degree of the Kerr medium with the light field, the mean photon numbers and the ground state probability amplitude of atomic initial state are analyzed. The results indicate that the influence of the degree of entanglement of the two-mode entangled coherent fields on the statistic properties of photon isn't noticeable. The enhancing of Kerr effect results in the increase of the oscillating frequency of the time evolution curve of statistic properties of photon and the decrease of the oscillating amplitude of the curve. When the mean photon numbers of the mode 1 remain unchanged and the mean photon numbers of the mode 2 decreased, the oscillating amplitude of the curve increases.