About: Simulation of Emission Spectra for LH4 Ring: Intermolecular Coupling Fluctuation Effect

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	Photosynthesis starts with the absorption of a solar photon by one of the light-harvesting (LH) pigment-protein complexes and transferring the excitation energy to the reaction center where a charge separation is initiated. Knowledge of the microscopic structure of some photosynthetic systems and their function invokes during last twenty years long and intensive investigation of many theoretical and experimental laboratories. The geometric structure of LH complexes is known in great detail, e.g. for the LH2 and LH4 complexes of purple bacteria. Absorption and steady state fluorescence spectra for ring molecular systems are presented. The peripheral cyclic antenna unit LH4 of the bacterial photosystem from purple bacteria can be modeled by such system. The cumulant-expansion method of Mukamel et al. is used for the calculation of spectral responses of the system with exciton-phonon coupling. Dynamic disorder, interaction with a bath, in Markovian approximation simultaneously with uncorrelated static disorder in transfer integrals are taking into account in our simulations. We compare calculated absorption and steady state fluorescence spectra for LH4 ring obtained within the full Hamiltonian model with our previous results within nearest neighbour approximation model for uncorrelated static disorder in transfer integrals. All calculations were done in software package Mathematica. Photosynthesis starts with the absorption of a solar photon by one of the light-harvesting (LH) pigment-protein complexes and transferring the excitation energy to the reaction center where a charge separation is initiated. Knowledge of the microscopic structure of some photosynthetic systems and their function invokes during last twenty years long and intensive investigation of many theoretical and experimental laboratories. The geometric structure of LH complexes is known in great detail, e.g. for the LH2 and LH4 complexes of purple bacteria. Absorption and steady state fluorescence spectra for ring molecular systems are presented. The peripheral cyclic antenna unit LH4 of the bacterial photosystem from purple bacteria can be modeled by such system. The cumulant-expansion method of Mukamel et al. is used for the calculation of spectral responses of the system with exciton-phonon coupling. Dynamic disorder, interaction with a bath, in Markovian approximation simultaneously with uncorrelated static disorder in transfer integrals are taking into account in our simulations. We compare calculated absorption and steady state fluorescence spectra for LH4 ring obtained within the full Hamiltonian model with our previous results within nearest neighbour approximation model for uncorrelated static disorder in transfer integrals. All calculations were done in software package Mathematica. (en)
Title	Simulation of Emission Spectra for LH4 Ring: Intermolecular Coupling Fluctuation Effect Simulation of Emission Spectra for LH4 Ring: Intermolecular Coupling Fluctuation Effect (en)
skos:prefLabel	Simulation of Emission Spectra for LH4 Ring: Intermolecular Coupling Fluctuation Effect Simulation of Emission Spectra for LH4 Ring: Intermolecular Coupling Fluctuation Effect (en)
skos:notation	RIV/00216275:25410/14:39898845!RIV15-MSM-25410___
http://linked.open...avai/riv/aktivita	I S
http://linked.open...avai/riv/aktivity	I, S
http://linked.open...iv/cisloPeriodika	1
http://linked.open...vai/riv/dodaniDat	2015
http://linked.open...aciTvurceVysledku	Zapletal, David
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Univerzita Pardubice / Fakulta ekonomicko-správní
http://linked.open...dnocenehoVysledku	44980
http://linked.open...ai/riv/idVysledku	RIV/00216275:25410/14:39898845
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	Mathematica; exciton states; static and dynamic disorder; absorption and fluorescence spectrum; LH4 (en)
http://linked.open.../riv/klicoveSlovo	absorption and fluorescence spectrum Mathematica exciton states static and dynamic disorder LH4
http://linked.open...odStatuVydavatele	US - Spojené státy americké
http://linked.open...ontrolniKodProRIV	[04B3589C9566]
http://linked.open...i/riv/nazevZdroje	International Journal of Mathematics and Computers in Simulation
http://linked.open...in/vavai/riv/obor	IN
http://linked.open...ichTvurcuVysledku	1 (xsd:int)
http://linked.open...cetTvurcuVysledku	2 (xsd:int)
http://linked.open...UplatneniVysledku	2014
http://linked.open...v/svazekPeriodika	8
http://linked.open...iv/tvurceVysledku	Heřman, Pavel Zapletal, David
issn	1998-0159
number of pages	9 (xsd:int)
http://localhost/t...ganizacniJednotka	25410

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