Pseudomode Approach and Vibronic Non-Markovian Phenomena in Light-Harvesting Complexes

The pseudomode approach is discussed, with emphasis on the Gorini–Kossakowski–Sudarshan–Lindblad form of this approach. The connection of the pseudomode approach with solutions of the Friedrichs model and the Jaynes–Cummings model with dissipation at zero temperature is shown. The obtained results are applied to the description of non-Markovian phenomena in the Fenna–Matthews–Olson complexes. Estimations based on experimental data are presented. A generalization of the pseudomode approach to the finite-temperature case with the use of the deformation technique is discussed.