It is worth noting that when using exact factorization and the TDPES, it is not possible to recover information related to individual electronic states-neither in the adiabatic nor in the diabatic basis representations. A single PES produces the evolution of the nuclear wavepacket, which is not resolved according to its adiabatic components. Therefore, information about the occupation of the electronic states is not accessible. However, in order to present a more in-depth analysis of the models and to circumvent this feature of exact factorization, we show in Fig. the transmission probability through a dividing surface placed at x d = 2 a 0 , for the third model discussed in this section. This observable provides indirect information about the occupation of the electronic states, because the transmitted density, at the low initial momenta used here, is only found in the lower electronic state. The results shown in Fig. attest to the importance of nuclear quantum effects to recover the correct dynamics, as TDCT (short-dashed lines) does not reproduce exact results (continuous lines). On the other hand, TDQT (long-dashed lines) reproduces very well the benchmark calculations, despite the numerical instabilities described above.