In Fig. we report the TDPES (colormap) as function of the nuclear coordinates ϕ and q at the same time steps as in Fig. , superimposed with the nuclear density |χ(ϕ, q, t)| 2 (contour lines) and indicating the CIs as crosses. Note that the TDPES is only calculated, and shown, in regions where the nuclear density is larger than 10 -7 for numerical convenience.