title: Excitation energy transfer modulated by oscillating electronic coupling of a dimeric system embedded in a molecular environment.
abstract: We have developed a theoretical formulation for excitation energy transfer between structurally fluctuating dimer molecules in surrounding environments. On the basis of a generalized master equation in which a memory function plays a vital role, the temporal evolutions of the population densities of exciton at the donor and acceptor sites are described. By employing an ansatz form for the memory function, the competitive effects of dimeric coupling and bath modes are analyzed quantitatively, where the roles of oscillating electronic coupling are highlighted.
authors.affiliation: Graduate School of Human Development and Environment, Kobe University, 3-11 Tsurukabuto, Nada, Kobe 657-8501, Japan. suzuki@radix.h.kobe-u.ac.jp
authors.forename: Yosuke
authors.initials: Y
authors.lastname: Suzuki
authors.forename: Shigenori
authors.initials: S
authors.lastname: Tanaka
mesh_terms: D001426:Bacterial Proteins / Q000737:chemistry / Q000378:metabolism; D019281:Dimerization; D004583:Electrons; D004735:Energy Transfer; D045342:Light-Harvesting Protein Complexes / Q000737:chemistry / Q000378:metabolism; D008958:Models, Molecular; D010860:Pigments, Biological / Q000737:chemistry / Q000378:metabolism; D055503:Protein Multimerization; D020836:Protein Structure, Quaternary; D013269:Stochastic Processes
chemical_list: D001426:Bacterial Proteins; C086320:FMO bacteriochlorophyll protein, Bacteria; D045342:Light-Harvesting Protein Complexes; D010860:Pigments, Biological