Cited by 219Spectroscopy and Quantum Chemical StudiesStrong Light-Matter InteractionsPhotochemistry and Electron Transfer Studies

The fundamental role of quantized vibrations in coherent light harvesting by cryptophyte algae

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Kolli, Avinash, O’Reilly, Edward J., Scholes, Gregory D., Olaya-Castro, Alexandra·2012·The Journal of Chemical Physics

Abstract

The influence of fast vibrations on energy transfer and conversion in natural molecular aggregates is an issue of central interest. This article shows the important role of high-energy quantized vibrations and their non-equilibrium dynamics for energy transfer in photosynthetic systems with highly localized excitonic states. We consider the cryptophyte antennae protein phycoerythrin 545 and show that coupling to quantized vibrations, which are quasi-resonant with excitonic transitions is fundamental for biological function as it generates non-cascaded transport with rapid and wider spatial distribution of excitation energy. Our work also indicates that the non-equilibrium dynamics of such vibrations can manifest itself in ultrafast beating of both excitonic populations and coherences at room temperature, with time scales in agreement with those reported in experiments. Moreover, we show that mechanisms supporting coherent excitonic dynamics assist coupling to selected modes that channel energy to preferential sites in the complex. We therefore argue that, in the presence of strong coupling between electronic excitations and quantized vibrations, a concrete and important advantage of quantum coherent dynamics is precisely to tune resonances that promote fast and effective energy distribution.

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  • Environmental spectral densities describing interaction with the system tend to display two principal structures: a broad smooth background and well defined narrow features.

    “The environmental spectral densities [25] describing their interaction with the system tend to display two principal structures, a broad smooth background which has a short memory time and interacts with the system mainly through its fluctuations, i.e. causing noise, and well defined narrow features corresponding, for example, to long-lived vibrational motion that can lead to quasi-coherent Dynami”

    From Vibrations, quanta and biology (2013) · cites this paper as [25]

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  1. 2 H. Van Amerongen, L. Valkunas and R. Van Grondelle Photosynthetic excitons (World Scientific, Singapore 2000).
  2. 19 K. E. Wilk, S. J. Harrop, L. Jankova, D. Edler, G. Keenan, F. Sharples, R. G. Hiller, and P. M. G. Curmi, Proc. Natl. Acad. Sci. U.S.A. 96 , 8901 (1999).
  3. 23 T. F¨ orster, Discuss. Faraday Soc. 27, 7 (1959).
  4. 29 C. Curutchet, J. Kongsted, A. Mu˜ noz-Losa, H. Hossein-Nejad, G. D. Scholes and B. Mennucci, J. Am. Chem. Soc. 133 (9), 3078 ( 2011).
  5. 47 A. W. Chin, J. Prior, R. Rosenbach, F. Caycedo-Soler, S. F. Huelga, M. B. Plenio, E-print: arXiv:1203.0776 (2012). · arXiv
  6. 48 F. Caycedo-Soler, A. W. Chin, J. Almeida, S. F. Huelga and M. B. Plenio, J. Chem. Phys. 136, 155102 (2012).

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Authors
Kolli, A., O’Reilly, E. J., Scholes, G. D., & Olaya-Castro, A.
Affiliations
  • University College London (GB)
  • University of Toronto (CA)
Venue
The Journal of Chemical Physics
Published
2012-11-06
Volume
137
Issue
17
Pages
174109-174109
ISSN
  • 0021-9606 (ISSN-L)
  • 1089-7690
OpenAlex
W1991695217
Cited by
219
References
49
Citations by year
2026: 4 · 2025: 4 · 2024: 9 · 2023: 7 · 2022: 13 · 2021: 13 · 2020: 10 · 2019: 17 · 2018: 16 · 2017: 23 · 2016: 28 · 2015: 34 · 2014: 18 · 2013: 20 · 2012: 2
FWCI
12.23
Type
journal article
Language
en
Open access
Locations
  • The Journal of Chemical Physics (publishedVersion)
  • PubMed (publishedVersion)
  • arXiv (Cornell University) (submittedVersion)
  • UCL Discovery (University College London) (submittedVersion)
  • arXiv (Cornell University)
Funders
Engineering and Physical Sciences Research Council (EP/G005222/1)
Topics
  • Physical Sciences › Physics and Astronomy › Atomic and Molecular Physics, and Optics › Spectroscopy and Quantum Chemical Studies
  • Physical Sciences › Physics and Astronomy › Atomic and Molecular Physics, and Optics › Strong Light-Matter Interactions
  • Physical Sciences › Chemistry › Physical and Theoretical Chemistry › Photochemistry and Electron Transfer Studies
Keywords
cryptophyte algae, excitonic energy transfer, excitonic coherence, ultrafast exciton dynamics, exciton-vibration coupling, photosynthetic antenna proteins, resonant frequency tuning
MeSH terms
Electrons, Energy Transfer, Models, Molecular, Phycoerythrin, Protein Conformation, Quantum Theory, Vibration, Cryptophyta

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