摘要
研究了两个偶极相互作用二能级原子与高 Ｑ 腔场双光子相互作用的腔场谱．给出了初始光场为 Ｆｏｃｋ 态、相干态和压缩真空态时的计算结果并解释了谱结构的形成，分析了原子间的偶极相互作用和初态的交换对称性对腔场谱的影响．发现当两原子均处于激发态时，腔场谱只在初始光场为真空态时出现４ 峰结构，而在其它初始场时，都呈现出奇数峰，这与相应的辐射谱偶数峰的结构明显不同．而两原子只有一个处于激发态时，腔场谱结构主要由原子初态是否具有交换对称性决定．
The cavity field spectra for a pair of coupled two\|level atoms with single mode of the radiation in an ideal cavity via two\|photon resonant transition processes are investigated.The results for the initial fields in pure number state,coherent state or squeezed vacuum state are presented and discussed.The effects of dipole\|dipole interaction of atoms and exchange symmetry of the initial state of atoms on the cavity field spectra are analyzed.It is found that the odd peaks structure of the cavity field spectra appears for various initial fields except vacuum state with the two atoms in the excited states.This is in contrast with the even peaks of the emission spectra of the Sham model.When only one of the two atoms is in the excited state,the exchange symmetry of the atoms plays a decisive role in the structure of the cavity field spectra. PACC: 4250; 3280
出处
《物理学报》
SCIE
EI
CAS
CSCD
北大核心
1999年第9期1650-1658,共9页
Acta Physica Sinica
基金
山东省自然科学基金
