Effects of Different Quantum Coherence on the Pump-Probe Polarization Anisotropy of Photosynthetic Light-Harvesting Complexes: A Computational Study

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	Effects of Different Quantum Coherence on the Pump-Probe Polarization Anisotropy of Photosynthetic Light-Harvesting Complexes: A Computational Study
	Bai, Shuming; Song, Kai; Shi, Qiang
刊名	JOURNAL OF PHYSICAL CHEMISTRY LETTERS
	2015-05-21
卷号	6 期号:10 页码:1954-1960
英文摘要	Observations of oscillatory features in the 2D spectra of several photosynthetic complexes have led to diverged opinions on their origins, including electronic coherence, vibrational coherence, and vibronic coherence. In this work, effects of these different types of quantum coherence on ultrafast pump-probe polarization anisotropy are investigated and distinguished. We first simulate the isotropic pump-probe signal and anisotropy decay of the Fenna-Matthews-Olson (FMO) complex using a model with only electronic coherence at low temperature and obtain the same coherence time as in the previous experiment. Then, three model dimer systems with different prespecified quantum coherence are simulated, and the results show that their different spectral characteristics can be used to determine the type of coherence during the spectral process. Finally, we simulate model systems with different electronic-vibrational couplings and reveal the condition in which long time vibronic coherence can be observed in systems like the FMO complex.
收录类别	SCI
语种	英语
公开日期	2015-11-02
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/28126]
专题	化学研究所_分子动态与稳态结构实验室
作者单位	Chinese Acad Sci, Inst Chem, Beijing Natl Lab Mol Sci, State Key Lab Struct Chem Unstable & Stable Speci, Beijing 100190, Peoples R China
推荐引用方式 GB/T 7714	Bai, Shuming,Song, Kai,Shi, Qiang. Effects of Different Quantum Coherence on the Pump-Probe Polarization Anisotropy of Photosynthetic Light-Harvesting Complexes: A Computational Study[J]. JOURNAL OF PHYSICAL CHEMISTRY LETTERS,2015,6(10):1954-1960.
APA	Bai, Shuming,Song, Kai,&Shi, Qiang.(2015).Effects of Different Quantum Coherence on the Pump-Probe Polarization Anisotropy of Photosynthetic Light-Harvesting Complexes: A Computational Study.JOURNAL OF PHYSICAL CHEMISTRY LETTERS,6(10),1954-1960.
MLA	Bai, Shuming,et al."Effects of Different Quantum Coherence on the Pump-Probe Polarization Anisotropy of Photosynthetic Light-Harvesting Complexes: A Computational Study".JOURNAL OF PHYSICAL CHEMISTRY LETTERS 6.10(2015):1954-1960.