Non-adiabatic quantum dynamics of the ultracold Li+LiNa→ Li₂+Na chemical reaction

We report non-adiabatic dynamics of the Li+LiNa→Li₂+Na chemical reaction at cold and ultracold temperatures employing accurate ab initio electronic potential energy surfaces in a quantum dynamics formulation employing a diabatic representation. Results are compared against those from a single adiabatic ground state potential energy surface and a universal model based on the long-range interaction potential. We discuss signatures of non-universal behavior in the total rate coefficients as well as strong non-adiabatic effects in the state-to-state rotationally resolved rate coefficients.