摘要
应用全量子理论,研究了含Kerr介质时,耦合双原子与单模量子化光场双光子跃迁相互作用系统的腔场谱,给出了初始时刻原子处于激发态,光场处于数态时的计算结果。讨论了Kerr介质对双光子Tavis-Cummings模型腔场谱量子特性的影响。结果表明,随Kerr效应的加强,腔场谱的峰高、峰位以及峰的个数均发生明显变化:Rabi峰由4个演化为等高双峰;弱场时由5峰演化为差别较大的不等高双峰;强场时则有两高频峰逐渐减弱而先后消失,低频峰逐渐增强直至饱和,最终演化为经典的单峰结构。
The cavity field spectra of two coupling atoms interacting with single mode field via two-photon process with Kerr medium were studied by means of the quantum theory. The results for the atoms in upper level states and the field in pure number state initially were presented. The influence of Kerr-effect on the spectra structure was discussed. It is found that the Kerr medium affected the height, position and number of the peaks sensitively. With the increase of the Kerr-effect, the number of spectrum peaks changes from four to two for a vacuum field, from five to two for a weak field and from three to one for a strong field.
出处
《原子与分子物理学报》
CAS
CSCD
北大核心
2005年第4期729-734,共6页
Journal of Atomic and Molecular Physics
基金
山东省自然科学基金(批准号:Y2004A09)资助项目。
关键词
量子光学
腔场谱
KERR效应
T-C模型
双光子过程
Quantum optics, Cavity field spectrum, Kerr-like medium, Tavis-Cummings Model, Twophoton process
