The impact of cavity-induced conical intersections on photodissociation reactions inside optical cavities was also investigated in the work shown in Fig. , adapted from Ref. 331. In a photo-dissociation reaction of a LiF molecule coupled with the cavity, a PICI forms at the point when |e, 0⟩ and |g, 1⟩ surfaces cross and the angle θ between the transition dipole moment and cavity vector polarization is π/2 (Fig. ). To investigate the impact of the PICI (and the rotation dynamics as a whole), the dissociated population as a function of time was calculated both when including the rotational dynamics (Fig. (iii), referred to as the 2D model) and when fixing the angle with the cavity (Fig. (ii), referred to as 1D model). Further, the number of initial photonic excitations was varied to understand the effect of PICI. The dissociated population dynamics between the 1D and 2D scenarios were different, and this difference became larger for a larger number of initial photonic excitations in the cavity. 331 This is because that for a larger photon number n (associated with the photonic Fock state |n⟩), the non-adiabatic coupling between the upper and lower polariton surfaces increases, thus making the effect of the PICI more pronounced (which is to quickly relax populations from the higher energy surface to the lower energy surface).