Wehrle, MariusSulc, MiroslavVanicek, Jiri2011-05-262011-05-262011-05-26201110.2533/chimia.2011.334https://infoscience.epfl.ch/handle/20.500.14299/67897WOS:000291339700012We explore three specific approaches for speeding up the calculation of quantum time correlation functions needed for time-resolved electronic spectra. The first relies on finding a minimum set of sufficiently accurate electronic surfaces. The second increases the time step required for convergence of exact quantum simulations by using different split-step algorithms to solve the time-dependent Schrödinger equation. The third approach lowers the number of trajectories needed for convergence of approximate semiclassical dynamics methods.Pump-probeQuantum dynamicsSemiclassical approximationSplit-operator methodStimulated emissiontext::journal::journal article::research article