Exciton-Phonon Information Flow in the Energy Transfer Process of Photosynthetic Complexes

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Exciton-Phonon Information Flow in the Energy Transfer Process of Photosynthetic Complexes

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Title: Exciton-Phonon Information Flow in the Energy Transfer Process of Photosynthetic Complexes
Author: Aspuru-Guzik, Alan; Rebentrost, Frank Patrick

Note: Order does not necessarily reflect citation order of authors.

Citation: Aspuru-Guzik, Alan and Patrick Rebentrost. 2010. Exciton-phonon information flow in the energy transfer process of photosynthetaic complexes. Preprint, Dept. of Chemistry and Chemical Biology, Harvard University.
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Abstract: Non-Markovian and non-equilibrium phonon effects are believed to be key ingredients in the energy transfer in photosynthetic complexes, especially in complexes which exhibit a regime of intermediate exciton-phonon coupling. In this work, we harness a recently developed measure for non-Markovianity to elucidate the information flow between electronic and vibrational degrees of freedom. We study the measure in the hierarchical equation of motion approach which captures strong system-bath coupling effects and non-equilibrium molecular reorganization. We find that, for a model dimer system and the Fenna-Matthews-Olson complex, non-Markovianity is significant under realistic physiological conditions. A first step towards experimental quantification is provided by the study of four-wave mixing initial states.
Published Version: http://arxiv.org/abs/1011.3809v1
Terms of Use: This article is made available under the terms and conditions applicable to Open Access Policy Articles, as set forth at http://nrs.harvard.edu/urn-3:HUL.InstRepos:dash.current.terms-of-use#OAP
Citable link to this page: http://nrs.harvard.edu/urn-3:HUL.InstRepos:4626655

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  • FAS Scholarly Articles [6898]
    Peer reviewed scholarly articles from the Faculty of Arts and Sciences of Harvard University
 
 

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