Our second example is a 3-dimensional two-state model 58 of the photo-induced isomerization of PSB3, which has been studied in Ref. [ 45,59] with various trajectory-based methods as well as in Ref. [ 35] with CTMQC-E. Here, we will extend the analysis on the mechanism of action of CTMQC-E and the consequences for some nuclear observables. The diabatic Hamiltonian is