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COHERENT MOTION AND TRANSFER OF EXCITATION ENERGY IN THE PRIMARY PROCESSES OF PHOTOSYNTHESIS
Author(s) -
Klevanik Alexander,
Renger Gernot
Publication year - 1993
Publication title -
photochemistry and photobiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.818
H-Index - 131
eISSN - 1751-1097
pISSN - 0031-8655
DOI - 10.1111/j.1751-1097.1993.tb02250.x
Subject(s) - photosynthetic reaction centre , dephasing , excitation , energy transfer , master equation , fluorescence , kinetics , antenna (radio) , physics , photochemistry , excited state , chemistry , pauli exclusion principle , electron transfer , molecular physics , chemical physics , atomic physics , optics , quantum mechanics , quantum , telecommunications , computer science
Fluorescence decay curves are calculated within the framework of the Liouville von Neumann equation for simple model systems of a photosynthetic unit consisting of a reaction center coupled to either a linear chain or a hexagonal array of identical antenna pigments. A comparison of the results with those obtained by solving the Pauli Master equations reveals that in the case of coherent excitation energy transfer the fluorescence decay kinetics exhibit a strong dependence on the topological array of the antenna pigments. For systems with a different pigment array, markedly different kinetics can be expected upon decreasing the pure dephasing time.