Role of Quantum Coherence in Chromophoric Energy Transport

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Role of Quantum Coherence in Chromophoric Energy Transport

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Title: Role of Quantum Coherence in Chromophoric Energy Transport
Author: Rebentros, Patrick; Mohseni, Masoud; Aspuru-Guzik, Alan

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

Citation: Rebentros, Patrick, Masoud Mohseni, and Alán Aspuru-Guzik. 2009. Role of quantum coherence in chromophoric energy transport. Journal of Physical Chemistry B 113(29): 9942–9947.
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Abstract: The role of quantum coherence in the dynamics of photosynthetic energy transfer in chromophoric complexes is not fully understood. In this work, we quantify the biological importance of fundamental physical processes, such as the excitonic Hamiltonian evolution and phonon-induced decoherence, by their contribution to the efficiency of the primary photosynthetic event. We study the effect of spatial correlations in the phonon bath and slow protein scaffold movements on the efficiency and the contributing processes. To this end, we develop two theoretical approaches based on a Green’s function method and energy transfer susceptibilities. We investigate the Fenna−Matthews−Olson protein complex, in which we find a contribution of coherent dynamics of about 10% in the presence of uncorrelated phonons and about 30% in the presence of realistically correlated ones.
Published Version: doi:10.1021/jp901724d
Other Sources: http://arxiv.org/abs/0806.4725v2
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:4646384

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  • FAS Scholarly Articles [6464]
    Peer reviewed scholarly articles from the Faculty of Arts and Sciences of Harvard University
 
 

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