ArticleBiophysical journal2006
Dynamics of the emission spectrum of a single LH2 complex: interplay of slow and fast nuclear motions.
Article in Biophysical journal, 2006. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers.
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25 citing papers in PubMed.
- Minimization of Disorder as a Key Design Principle for Natural Sizes of Light Harvesting 2 Complexes.The journal of physical chemistry letters · 2026Article
- Energy transfers between the B850 antennas: hybrid hierarchical equation approach.Photosynthesis research · 2025Article
- Macroscale optimal size of ICM vesicles regulated by quantum design principle in LH2 structure.Biophysical journal · 2025Article
- Theory of photosynthetic membrane influence on B800-B850 energy transfer in the LH2 complex.Biophysical journal · 2025Article
- High-Resolution Frequency-Domain Spectroscopic and Modeling Studies of Photosystem I (PSI), PSI Mutants and PSI Supercomplexes.International journal of molecular sciences · 2024Review
- The Relationship between the Spatial Arrangement of Pigments and Exciton Transition Moments in Photosynthetic Light-Harvesting Complexes.International journal of molecular sciences · 2021Article
- Simple Quantum Dynamics with Thermalization.The journal of physical chemistry. A · 2018Article
- Contribution of low-temperature single-molecule techniques to structural issues of pigment-protein complexes from photosynthetic purple bacteria.Journal of the Royal Society, Interface · 2018Review
- Fluorescence polarization measures energy funneling in single light-harvesting antennas--LH2 vs conjugated polymers.Scientific reports · 2015Article
- Conformational switching in a light-harvesting protein as followed by single-molecule spectroscopy.Biophysical journal · 2015Article
- Vibronic models for nonlinear spectroscopy simulations.Photosynthesis research · 2014Article
- Photosynthetic light harvesting: excitons and coherence.Journal of the Royal Society, Interface · 2014Review
- Single-molecule spectroscopy reveals photosynthetic LH2 complexes switch between emissive states.Proceedings of the National Academy of Sciences of the United States of America · 2013Article
- How Quantum Coherence Assists Photosynthetic Light Harvesting.The journal of physical chemistry letters · 2012Article
- Direct visualization of exciton reequilibration in the LH1 and LH2 complexes of Rhodobacter sphaeroides by multipulse spectroscopy.Biophysical journal · 2011Article
- The effect of correlated bath fluctuations on exciton transfer.The Journal of chemical physics · 2011Article
- Förster energy transfer theory as reflected in the structures of photosynthetic light-harvesting systems.Chemphyschem : a European journal of chemical physics and physical chemistry · 2011Review
- Photosynthesis: Quantum design for a light trap.Nature · 2010Article
- Light harvesting complex II B850 excitation dynamics.The Journal of chemical physics · 2009Article
- Coherent multidimensional optical spectroscopy of excitons in molecular aggregates; quasiparticle versus supermolecule perspectives.Chemical reviews · 2009Review
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3 authors.
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Abstract
We have studied the relationship between the realizations of static disorder and the emission spectra observed for a single LH2 complex. We show that the experimentally observed spectral fluctuations reflect realizations of the disorder in the B850 ring associated with different degrees of exciton delocalization and different effective coupling of the excitons to phonon modes. The main spectral features cannot be explained using models with correlated disorder associated with elliptical deformations of the ring. A quantitative explanation of the measured single-molecule spectra is obtained using the modified Redfield theory and a model of the B850 ring with uncorrelated disorder of the site energies. The positions and spectral shapes of the main exciton components in this model are determined by the disorder-induced shift of exciton eigenvalues in combination with phonon-induced effects (i.e., reorganization shift and broadening, that increase in proportion to the inverse delocalization length of the exciton state). Being dependent on the realization of the disorder, these factors produce different forms of the emission profile. In addition, the different degree of delocalization and effective couplings to phonons determines a different type of excitation dynamics for each of these realizations. We demonstrate that experimentally observed quasistable conformational states are characterized by excitation energy transfer regimes varying from a coherent wavelike motion of a delocalized exciton (with a 100-fs pass over half of the ring) to a hopping-type motion of the wavepacket (with a 350-fs jump between separated groups of 3-4 molecules) and self-trapped excitations that do not move from their localization site.
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