where Θ N is the mixing angle defined under Eq. 14. The cavity QED process can thus mediate the charge transfer process by modifying the driving force ∆G ± c , the reorganization energy λ ± c and effective electronic coupling V ± c . These quantities, and consequently the ET dynamics, can be tuned by changing the photon frequency ω c , as well as the light-matter coupling strength ℏg c . Thus, coupling molecules to the cavity opens up new possibilities to control ET kinetics by using fundamental properties of quantum light-matter interaction.