非等同双原子与双模腔场拉曼相互作用模型的腔场谱

研究了非等同双原子与双模腔场拉曼相互作用模型的腔场谱,分析了谱结构随原子与腔场相对耦合常数R=g2/g1的变化规律,发现R对真空场、弱场、强场谱结构都有不同程度的影响.当R=1或R=0时,一般呈现简并的谱结构,而当R介于0与1之间时,腔场谱一般呈现复杂的非对称多峰结构.同时还发现,当R固定不变时,低频腔场初始场强对高频真空场谱结构也有较明显的影响. 关键词： 量子光学 腔场谱 拉曼相互作用 双模腔场

Cavity field spectra of two different atoms interacting with a two-mode field through Raman process

The cavity field spectra of two different atoms interacting with two-mode fields through Raman process are studied.The effects of relative coupling constant R=g 2/g 1 on the spectrum structure are discussed.It is found that R plays a different role in the syectrum for vacuum,weak or strong initial field.Degenerate spectrum structure appears usually for R=1 or R=0.A complicated asymmetric multi-peak structure appears when R is between 0 and 1.When the field of upper frequency mode is vacuum,its spectrum is influenced sensitively by the field intensity of the other mode for fixed R.