which contains both the resonance structure (due to the line shape function A ν (ω c -ω 0 )) and the boundedness with respect to τ c . Because that |ν L , 0⟩ → |ν L , 1⟩ → |ν ′ L , 0⟩ is rate-limiting for the entire reaction process in Eq. 11, the VSC-modified rate constant can also be evaluated as k = k 0 + kVSC under the lossless regime (τ -1 c ≪ Ω R ), being valid under the FGR limit . Similar to the lossy regime, we report