The super-reaction rate thus has a √ N dependence in its prefactor as well as an N dependence in the shoulder of the negative exponential that scales as e -N when N λ ≫ ∆G ± c . The consequence of these scalings is that there exists some optimal value of N that maximizes the rate constant in Eq. 217 before the e -N scaling kills the rate for larger N . The main principle behind why cavities can enhance super-reaction systems is that the protection of coherence between the donor molecules is especially important to maximize transfer rates to the acceptor molecule. Coupling to the cavity increases the coherence between these donor molecules by encouraging delocalized polariton and dark state formation. This ultimately leads to an increase in the acceptor population versus outside the cavity (Fig. ).