Photoisomerization quantum yields for TAB in low viscosity solvents have been measured by various groups , yielding values in the range of 0.20-0.32 for the nπ * excitation and 0.09-0.16 for the ππ * excitation. We present in Table , the trans→cis partial photoisomerization quantum yields, Φ, for all the methods considered in this work. It is worth noting that trajectories with faster decay tend to predominantly remain in the trans side after relaxing to the ground state, while slower trajectories have a higher probability of undergoing photoisomerization. Consequently, we expect a higher photoisomerization quantum yield when all the trajectories reach the ground state. This is why we refer to the quantum yields presented in Table as "partial". The calculated Φ values for the trajectories starting in the nπ * state exhibit overall agreement with each other and with the experimental values. We remind that, besides the simulation method, other factors affect the results and particularly the quantum yields: possible inaccuracies of the PESs , the interactions with the solvent , and the sampling of initial conditions . This last factor, together with the presence of undecayed trajectories after 1 ps, seems to have a major effect, since previous TSH simulations for the isolated molecule, with decoherence corrections and Boltzmann sampling of the initial conditions, yielded rather different results: by nπ * excitation the quantum yield was 0.33 and by ππ * excitation it was 0.20 .