Efficient Energy Transfer in Light-Harvesting Systems, III: The Influence of the Eighth Bacteriochlorophyll on the Dynamics and Efficiency in FMO
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Cao_Efficient Energy Nov 2011.pdf
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Author(s)
Moix, Jeremy
Wu, Jianlan
Huo, Pengfei
Coker, David
Cao, Jianshu
Date Issued
November 2011
Journal
The Journal of Physical Chemistry Letters
Publisher
American Chemical Society (ACS)
Citation
Moix, Jeremy, Jianlan Wu, Pengfei Huo, David Coker, and Jianshu Cao. “Efficient Energy Transfer in Light-Harvesting Systems, III: The Influence of the Eighth Bacteriochlorophyll on the Dynamics and Efficiency in FMO.” The Journal of Physical Chemistry Letters 2, no. 24 (December 15, 2011): 3045-3052.
Version
Author's final manuscript
Abstract
The most recent crystal structure of the Fenna–Matthews–Olson (FMO) protein complex indicates the presence of an additional eighth chromophore, which has been proposed to serve as a link between the chlorosome and the remaining seven chromophores. Here, we investigate the implications of this scenario through numerical calculations with the generalized Bloch–Redfield (GBR) equation and the noninteracting blip approximation (NIBA). It is shown that the oscillations often observed in the population relaxation of sites 1 and 2 may be completely suppressed in the eight-site model due to the initial preparation. Second it is demonstrated that while the presence of the eighth chromophore does not cause a dramatic change in the energy-transfer efficiency, it does however lead to a dominant energy-transfer pathway that can be characterized by an effective three-site system. Finally, we confirm that the energy-transfer process in the eight-site complex remains efficient and robust through computations of the optimal values of the bath parameters.
Description
Author's final manuscript September 14, 2011
MIT Department
Massachusetts Institute of Technology. Department of Chemistry
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Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
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DOI of Published Version
https://doi.org/10.1021/jz201259v
