Dynamics of Rabi model under second-order Born—Oppenheimer approximation
Zhihai Wang, Duan-Lu Zhou · Chinese Physics B · 2013
We apply the second-order Born—Oppenheimer (BO) approximation to investigate the dynamics of the Rabi model, which describes the interaction between a two-level system and a single bosonic mode beyond the rotating wave approximation. By comparing with the numerical results, we find that our approach works well when the frequency of the two-level system is much smaller than that of the bosonic mode.