Frenkel exciton Hamiltonian for LH2 photosynthetic antenna

被引：0

作者：

Tretiak, Sergei ^{[1
]}

Middleton, Cris ^{[2
]}

Chernyak, Vladimir ^{[2
]}

Mukamel, Shaul ^{[2
]}

机构：

[1] Theoretical Division, Los Alamos National Laboratory, Mail Stop B262, Los Alamos, NM 87545, United States

[2] Chemistry Department, University of Rochester, Rochester, NY, United States

来源：

| 2000年 / ACS, Washington, DC, United States卷 / 41期

关键词：

Computational methods - Electron transitions - Excitons - Mathematical models - Molecular dynamics - Molecular structure - Photosynthesis;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

The collective electronic oscillator (CEO) approach was applied to study the electronic excitations of Bchl-a aggregates of LH2 complex of Rs. molischianum. The method is based on computing the optical response of small segments and avoids the quantum chemistry calculations of the whole complex. It provides an effective computational scheme for electronic excitations of large molecules. The electronic couplings are naturally obtained from these computations without invoking the point dipole approximation or similar approximations.

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