The chromophore→solvent polarization can be enabled by describing the solvent molecules with polarizable force fields, such as Drude oscillator models, induced dipole models, and fluctuatingcharge-and-induced-dipole models, leading to polarizable embedding. Similar to the continuum solvent models, there is a subtlety in polarizable embedding models as to whether the solvent response (e.g. Drude particle positions, fluctuating charges, and in-duced dipoles) is tied to the initial or final electronic state of the chromophore during the electronic excitation/de-excitation.