We discuss how the light harvesting in photosystem I, photosystem II and in light-harvesting complex II can be modeled at a quantitative level by taking into account the exciton structure of the chromophores in the pigment-protein complexes, static (conformational) disorder, and coupling of electronic excitations and charge-transfer (CT) states to fast nuclear motion. We show examples of simultaneous fitting of linear and nonlinear (time-dependent) spectral responses based on the modified Redfield theory that resulted in a consistent physical picture of the energy and electron transfer reactions. This picture (including the time scales and pathways of energy and charge transfer) allows a visualization of the excitation dynamics, thus leading to a deeper understanding of how photosynthetic pigment-proteins perform their function in harvesting of solar energy.
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van Grondelle, R., Novoderezhkin, V.I., Dekker, J.P. (2009). Modeling Light Harvesting and Primary Charge Separation in Photosystem I and Photosystem II. In: Laisk, A., Nedbal, L., Govindjee (eds) Photosynthesis in silico . Advances in Photosynthesis and Respiration, vol 29. Springer, Dordrecht. https://doi.org/10.1007/978-1-4020-9237-4_3
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