Signatures of three-exciton correlations in the coherent and incoherent nonlinear optical response of photosynthetic complexes
Signatures of three-exciton correlations in the coherent and incoherent nonlinear optical response of photosynthetic complexes
复制标题
光合复合物相干和非相干非线性光学响应中三激子相关性的特征
DOI：
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发表时间：
2010
期刊：
影响因子：
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通讯作者：
S. Mukamel
中科院分区：
文献类型：
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作者：
Li;D. Abramavičius;S. Mukamel
我们模拟研究了Fenna-Matthews-Olson(FMO)捕光光合作用复合体三阶非线性响应中的布居和相干弛豫动力学。引入了三激子关联，并计算了与声子浴耦合的六点弛豫超算符的二阶。当三激子变量因式分解时，三激子关联的动力学产生了新的峰，这些峰是不存在的或弱得多的。在最近的一项实验中观察到了这些特征(恩格尔·G·S等人，2007年，《自然》杂志，446782-6)。
We present a simulation study of population and coherence relaxation dynamics in the third-order nonlinear responses of the Fenna–Matthews–Olson (FMO) light-harvesting photosynthetic complex. Three-exciton correlations have been incorporated and the relevant six-point relaxation superoperator is calculated to second order in coupling to a phonon bath. The dynamics of three-exciton correlations induce new peaks that are absent or much weaker when the three-exciton variables are factorized. Such features were observed in a recent experiment (Engel G S et al 2007 Nature 446 782–6).