大失谐情况下的V-型三能级原子与光场相互作用

Interaction of a V-type Three-level Atom with a Cavity Field under High-detuning Condition

本文研究了一个V-型三能级原子与光场的相互作用．在原子与场大失谐情况下，处于基态能级可绝热消除，即此模型可化为非简并Raman耦合模型；进而提出了其改进型有效哈密顿量；最后得到了简并Raman耦合模型的有效哈密顿量，并借助于矩阵求出了任意时刻波函数的解。

In this papers we investigate the interaction of a V-type three-level atom with a cavity field under the high-detuning condition. First, we find that the ground state can be adiabatically elimilated, in other words, this model may be converted into a non-degenerate Raman coupled model. Then, we derive the modified effective Hamiltonian. Finally, we not only derive the effective Hamiltonian but also resolve its wave function in arbitrary time by virtue of matrix for a degenerate Raman coupled model. We conclude that this method is easier than others.