Optimization of energy transport in the Fenna-Matthews-Olson complex via site-varying pigment-protein interactions

被引：18

作者：

Oh, S. A. ^{[1
]}

Coker, D. F. ^{[2
]}

Hutchinson, D. A. W. ^{[1
,3
]}

机构：

[1] Univ Otago, Dodd Walls Ctr Photon & Quantum Technol, Dept Phys, Dunedin 9016, New Zealand

[2] Boston Univ, Dept Chem, 590 Commonwealth Ave, Boston, MA 02215 USA

[3] Natl Univ Singapore, Ctr Quantum Technol, 3 Sci Dr 2, Singapore 117543, Singapore

来源：

JOURNAL OF CHEMICAL PHYSICS | 2019年 / 150卷 / 08期

关键词：

FMO ANTENNA PROTEIN; DYNAMICS; COHERENCE;

D O I：

10.1063/1.5048058

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Energy transport in photosynthetic systems can be tremendously efficient. In particular, we study exciton transport in the Fenna-Mathews-Olson (FMO) complex found in green sulphur bacteria. The exciton dynamics and energy transfer efficiency depend on the interaction of excited chromophores with their environment. Based upon realistic, site-dependent models of the system-bath coupling, we present results that suggest that this interaction may be optimized in the case of FMO. Furthermore we verify two transport pathways and note that one is dominated by coherent dynamics and the other by incoherent energy dissipation. In particular, we note a significant correlation between energy transport efficiency and coherence for exciton transfer from bacteriochlorophyll (BChl) 8 to BChl 4. Published under license by AIP Publishing.

引用

页数：13

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