Intra- and interband transfers in the B800-B850 antenna of Rhodospirillum molischianum Redfield theory modeling of polarized pump-probe kinetics
Intra- and interband transfers in the B800-B850 antenna of Rhodospirillum molischianum Redfield theory modeling of polarized pump-probe kinetics
复制标题
莫里什红螺菌 B800-B850 天线的带内和带间传输 极化泵浦探针动力学的 Redfield 理论建模
DOI：
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发表时间：
2003
期刊：
影响因子：
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通讯作者：
R. Grondelle
中科院分区：
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作者：
V. Novoderezhkin;and Markus Wendling;R. Grondelle
我们使用 Molischianum 红螺菌 B800−B850 LH2 光捕获天线的激子模型来解释吸收、激发波长相关的泵浦探针动力学以及先前报道的 77 K 处的诱导吸收各向异性（Wendling, M.; van Mourik, F.; van Stokkum, I. H. M.; Salverda, J. M.; 米歇尔，H.； van Grondelle, R. 对莫里斯红螺菌 B800 波段的低强度泵浦探针测量。生物物理学。 J. 2003, 84, 440）。使用密度矩阵方程计算非线性响应，相对于外场扩展到三阶，并在激子基础上使用 Redfield 弛豫算子。该模型使我们能够获得数据的同步定量拟合，同时考虑到激子相互作用、静态无序以及声子引起的布居弛豫和单激子流形中的相干性（包括非长期相干转移和布居相干耦合）。激子-光子的谱密度...
We use an exciton model for the B800−B850 LH2 light-harvesting antenna of Rhodospirillum molischianum to explain the absorption, excitation-wavelength-dependent pump−probe kinetics, and induced absorption anisotropy at 77 K reported previously (Wendling, M.; van Mourik, F.; van Stokkum, I. H. M.; Salverda, J. M.; Michel, H.; van Grondelle, R. Low-intensity pump−probe measurements on the B800 band of Rhodospirillum molischianum. Biophys. J. 2003, 84, 440). The nonlinear response was calculated using the density matrix equation, expanded up to the third-order with respect to the external field, with the Redfield relaxation operator in the exciton basis. The model allowed us to obtain a simultaneous and quantitative fit of the data while taking into account the excitonic interactions, the static disorder, and phonon-induced relaxation of populations and coherences in the one-exciton manifold (including a nonsecular coherence transfer and population-coherence coupling). The spectral density of the exciton−pho...