非等同两原子与双模光场相互作用的腔场谱

Cavity Field Spectra of Two Different Atoms Interacting with Two-mode Field

研究了非等同两原子与双模腔场模型的腔场谱,分析了谱结构随原子与腔场相对耦合常数的变化规律。结果发现,相对耦合常数对真空场、弱场、强场谱结构都有不同程度的影响;通过改变一模的光强可以改变另一模腔场谱的频率,也可以改变相对耦合常数同时改变两模腔场谱的频率。

The cavity field spectrum of two atoms interacting with two-mode fields with different coupling constants (g1 ≠ g2) was studied. By solving the eigen equation, the cavity field spectrum expression of the system was given out. Some numerical results for the fields in pure number state and the atoms in the upper level were presented initially. The effects of the relative coupling constant R = g2/g1 or photon number on the spectrum structure were analyzed. It is found that R plays a different role in the spectrum with field in vacuum state, weak state and strong state. The frequency of one mode field spectrum is tuned by the intensity of the other mode. The frequencies of two modes spectra can be changed by the relative coupling constant.