Effect of trapping on transport coherence. II. Continuous-time random-walk treatment

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Abstract
Our recent investigation led to the conclusion that there is much agreement among theories of the excitation transfer: the generalized master equation (GME), the Haken-Strobl-Reineker stochastic-Liouville-equation theory, and the Grover-Silbey microscopic theory. Trapping effects influence memory functions entering the GME. Decoupling of the rest of the system from the sink in the nearly coherent regime for large trapping rates changes the form of the pausing-time-distribution functions and probability densities in the continuous-time random-walk method.