不作旋转波近似， 破缺可积性的因素，主要来自虚光场项。
In NRWA, the main factor which will deslroy the non classical effects is the virtual photon term.
在旋转波近似下，得到在入射光驱动下光子-声子耦合体系的总的相干性哈密顿算符。
Under rotating wave approximation, the total coherent Hamiltonian of photon-phonon coupling system driven by incident field is introduced.
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