双模腔场中两偶极相互作用原子的辐射谱

研究了双模腔场中两个偶极相互作用原子的辐射谱，详细讨论了双模腔场分别处于不同数态时的情形，发现其辐射谱具有如下特点：当两模腔场均处于真空态时，随着δ＝ｇ_a／ｇ的增加，辐射谱交替出现六峰、五峰结构，且在δ（＝３^－１／２）很小时就出现了非对称五峰结构，与单模双原子情形相比较，更为灵敏地反映出原子间的偶极相互作用；当一腔场为真空场，另一腔场为强场时，辐射谱显示出对称的六峰结构，任意两对称峰的间距与(2ｎ₂)^１／２ｇ成正比；当 关键词：

EMISSION SPECTRA OF TWO ATOMS COUPLED BY DIPOLE-DIPOLE FORCE IN TWO-MODE CAVITY FIELDS

Emission spectra of two atoms coupled by dipoie-dipole force in two-mode cavity fields are studied. It is found that emission spectra manifest the following new properties when two-mode cavity fields are initially in various-number states. When two fields are all in vacuum states, the spectrum shows six peaks and five peaks alternately, with the increase of δ＝ｇ_a／ｇ. Furthermore, the non-symmetric five peaks appear in the spectrum when δ is very small, which reflects the atomic dipole-dipole interaction more sensitively compared with the spectrum of two atoms in a single-cavity. The spectrum consists of symmetric six peaks and distance between each two symmetric peaks is proportional to (2ｎ₂)^１／２ｇ when one of the fields is in the vacuum states and the other is a strong field. However when one of the fields is in the vacuum state and the other in number state and δ＝2^１／２，the spectrum will generally show non-symmetric six peaks structure, but when ｎ₂＝５, it becomes non-symmetric five peaks structure.