An influence functional theory of multiphonon processes in molecular vibrational energy relaxation

摘要: Influence functional theory has been applied to describe vibrational energy relaxation of molecules in the solution based upon harmonic oscillators bath approximation. An algebraic formula perturbative influence is presented for a number quantum {qk} nonlinearly coupled system x as ∑kfk(x)qk+∑k∑lgkl(x)qkql+∑k∑l∑mhklm(x)qkqlqm. The approach opens way molecular analysis multiphonon processes making usage techniques and concepts field path integral theory. Based functional, we also derive computationally tractable expression time by executing exactly. much higher approximation than Fermi’s golden rule including perturbations up infinite order. A recipe numerical work classical dynamics calculation followed normal mode presented.