Simulation of the two-dimensional electronic spectra of the Fenna-Matthews-Olson complex using the hierarchical equations of motion method

被引：102

作者：

Chen, Liping ^{[1
]}

Zheng, Renhui ^{[1
]}

Jing, Yuanyuan ^{[1
]}

Shi, Qiang ^{[1
]}

机构：

[1] Chinese Acad Sci, Inst Chem, State Key Lab Struct Chem Unstable & Stable Speci, Beijing Natl Lab Mol Sci, Beijing 100190, Peoples R China

来源：

JOURNAL OF CHEMICAL PHYSICS | 2011年 / 134卷 / 19期

关键词：

FMO ANTENNA COMPLEXES; QUANTUM COHERENCE; ENERGY-TRANSFER; BACTERIOCHLOROPHYLL PROTEIN; PROSTHECOCHLORIS-AESTUARII; PHOTOSYNTHETIC COMPLEXES; DYNAMICS; SPECTROSCOPY; SYSTEM; COUPLINGS;

D O I：

10.1063/1.3589982

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：

We apply the Liouville space hierarchical equations of motion method to calculate the linear and two-dimensional (2D) electronic spectra of the Fenna-Matthews-Olson (FMO) protein complex from Chlorobium tepidum, using a widely used model Hamiltonian. The absorption and linear dichroism spectra of the FMO complex, as well as the main features of the 2D spectra are well reproduced. However, comparison with the recent experimental 2D spectra reveals several limitations of the current model: (1) The homogeneous and inhomogeneous broadening seems to be overestimated for the first exciton peak, but may be underestimated for several other exciton peaks. (2) The calculated oscillations of the diagonal and off-diagonal peaks in the 2D spectra are much weaker than the experimental observations, which indicates that an improved model is needed for the excitonic dynamics of the FMO complex. (C) 2011 American Institute of Physics. [doi:10.1063/1.3589982]

引用

页数：7

共 69 条

[1] Transport and correlated fluctuations in the nonlinear optical response of excitons [J].