Interplay of non-Markovian relaxation and ultrafast optical state preparation in molecular systems: The Laguerre polynomial method

摘要: The interplay of femtosecond optical excitation and retarded vibrational relaxation in a molecular system is studied using the non-Markovian version Quantum Master Equation. To solve equations with an arbitrary memory kernel expansion respect to Laguerre polynomials introduced applicability method tested. effects are identified parameter regimes indicated where these become predominant. For early time region just after excited state preparation it demonstrated that convolutionless quantum master equation time-dependent Redfield-tensor may give reasonable approximation correct dynamics.