ArticleNature chemistry2012
Elucidation of the timescales and origins of quantum electronic coherence in LHCII.
Article in Nature chemistry, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 31 papers.
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Who cites it
31 citing papers in PubMed.
- Energy transfer in N-component nanosystems enhanced by pulse-driven vibronic many-body entanglement.Scientific reports · 2023Article
- Spin selection in atomic-level chiral metal oxide for photocatalysis.Nature communications · 2023Article
- Phycobilisome's Exciton Transfer Efficiency Relies on an Energetic Funnel Driven by Chromophore-Linker Protein Interactions.Journal of the American Chemical Society · 2023Article
- Quantum coherent energy transport in the Fenna-Matthews-Olson complex at low temperature.Proceedings of the National Academy of Sciences of the United States of America · 2022Article
- A polarization scheme that resolves cross-peaks with transient absorption and eliminates diagonal peaks in 2D spectroscopy.Proceedings of the National Academy of Sciences of the United States of America · 2022Article
- The role of mixed vibronic QNature communications · 2020Article
- Observation of Ultrafast Coherence Transfer and Degenerate States with Polarization-Controlled Two-Dimensional Electronic Spectroscopy.The journal of physical chemistry. B · 2020Article
- DNA scaffold supports long-lived vibronic coherence in an indodicarbocyanine (Cy5) dimer.Chemical science · 2020Article
- Effect of disorder and polarization sequences on two-dimensional spectra of light-harvesting complexes.Photosynthesis research · 2020Article
- Quantum biology revisited.Science advances · 2020Review
- Vibronic mixing enables ultrafast energy flow in light-harvesting complex II.Nature communications · 2020Article
- Modification of excitation and charge transfer in cavity quantum-electrodynamical chemistry.Proceedings of the National Academy of Sciences of the United States of America · 2019Article
- Coherent phenomena in photosynthetic light harvesting: part two-observations in biological systems.Biophysical reviews · 2018Review
- Identification and characterization of diverse coherences in the Fenna-Matthews-Olson complex.Nature chemistry · 2018Article
- Vibronic Coherence in the Charge Separation Process of the Rhodobacter sphaeroides Reaction Center.The journal of physical chemistry letters · 2018Article
- Quantum coherence as a witness of vibronically hot energy transfer in bacterial reaction center.Science advances · 2017Article
- Controlling quantum-beating signals in 2D electronic spectra by packing synthetic heterodimers on single-walled carbon nanotubes.Nature chemistry · 2017Article
- Real-time observation of multiexcitonic states in ultrafast singlet fission using coherent 2D electronic spectroscopy.Nature chemistry · 2016Article
- Communication: Coherences observed in vivo in photosynthetic bacteria using two-dimensional electronic spectroscopy.The Journal of chemical physics · 2015Article
- Towards quantification of vibronic coupling in photosynthetic antenna complexes.The Journal of chemical physics · 2015Article
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Authors and funding
7 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Photosynthetic organisms harvest sunlight with near unity quantum efficiency. The complexity of the electronic structure and energy transfer pathways within networks of photosynthetic pigment-protein complexes often obscures the mechanisms behind the efficient light-absorption-to-charge conversion process. Recent experiments, particularly using two-dimensional spectroscopy, have detected long-lived quantum coherence, which theory suggests may contribute to the effectiveness of photosynthetic energy transfer. Here, we present a new, direct method to access coherence signals: a coherence-specific polarization sequence, which isolates the excitonic coherence features from the population signals that usually dominate two-dimensional spectra. With this polarization sequence, we elucidate coherent dynamics and determine the overall measurable lifetime of excitonic coherence in the major light-harvesting complex of photosystem II. Coherence decays on two distinct timescales of 47 fs and ~800 fs. We present theoretical calculations to show that these two timescales are from weakly and moderately strongly coupled pigments, respectively.
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