Rationalizing the results shown in Fig. (a) is not straightforward since both quantum tunneling and classically allowed transport contribute to the isomerization probability. Nevertheless, in order to qualitatively understand the cavity-induced effects for the different choices for fixed cavity frequency ωc = 1182 cm -1 and coupling strength η = 0.06. In (a) the corresponding ⟨HS⟩ for η = 0 are indicated by dashed lines. Note that the uncoupled system energy for qi = -0.9 and -0.439 are nearly the same.