) One should agree that the thermal and the frequencies of adiabatic transition events are much greater than the (net) rate 𝑟(𝑣 ⃗) (Eq. 12a) and the exponential term in Eq. 11 becomes zero. Therefore, I can rewrite Eq. 11 through introducing the transition rate 𝜏(𝑣 ⃗), Eq. 12b, and obtain Eq. 12c.