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Polarons, localization, and excitonic coherence in superradiance of biological antenna complexes

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Polarons, localization, and excitonic coherence in superradiance of biological antenna complexes

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Title: Polarons, localization, and excitonic coherence in superradiance of biological antenna complexes
Author: Meier, Torsten; Zhao, Yang; Chernyak, Vladimir; Mukamel, Shaul
Copyright year: 1997
Abstract: A real-space formulation of time-resolved fluorescence of molecular aggregates is developed using the one-exciton density matrix ρ(t) of the optically driven system. A direct relationship is established between the superradiance enhancement factor Ls and the exciton coherence size Lρ associated with the off-diagonal density matrix elements in the molecular representation. Various factors which affect the latter, including finite temperature, energetic disorder, coupling with phonons, and polaron formation are explored. The theory is applied for the interpretation of recent measurements in the B850 system of the LH2 photosynthetic complexes.
Subject: DRNTU::Science::Physics::Atomic physics::Solid state physics.
Type: Journal Article
Series/ Journal Title: Journal of chemical physics
School: School of Materials Science and Engineering
Rights: © 1997 AIP. This paper was published in Journal of Chemical Physics and is made available as an electronic reprint (preprint) with permission of American Institute of Physics. The paper can be found at: [Doi: http://dx.doi.org/10.1063/1.474746]. One print or electronic copy may be made for personal use only. Systematic or multiple reproduction, distribution to multiple locations via electronic or other means, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper is prohibited and is subject to penalties under law.
Version: Published version

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