where k B T is the thermal energy. Thus, computing the decoherence dynamics amounts to accurately calculating Γ(t) via numerical integration thus avoiding explicit time propagation of σ(t). Third, remarkably, in this context, it is possible to extract decoherence pathways in molecules by decomposing the overall decoherence into contributions due to solvent and specific vibrational modes. Inserting Eq. ( ) into Eq. ( ) leads to a decomposition of the decoherence function