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The journal Scientific Reports, belonging to the prestigious group Nature, has published an article by Javier Prior entitled "Quantum - coherent dynamics in photosynthetic charge separation revealed by wavelet analysis".
In this paper we present both theoretical and experimental evidence of the presence of quantum coherences in the photosynthetic complex 'Photosystem II Reaction Center (PSIIRC)' and its persistence throughout the energy transport process.
The article shows how the vibron coherence between the electronic states plays a fundamental role in the charge separation processes in the PSII RC compound, being present during the time scale of the energy and charge transfer processes.
This phenomenon allows a very high efficiency in the transformation of solar energy into electrochemical energy having this process a great physiological relevance.
By means of a sophisticated analysis of the experimental data realized in the Vrije Universiteit Amsterdam, the researchers have been able to demonstrate that the quantum coherences between certain excitonic states are not only general when absorbing the system the light but also occur in later instants.
This research work published in Scientific reports has been developed thanks to a collaboration between the Polytechnic of Cartagena and the Dutch university, where experimental researchers Elisabet Romero and Rienk van Grondelle, authors of this work also work.
The project has been funded by the Ministry of Economy and Competitiveness and the Seneca Foundation, Murcia agency for research and development.
Javier Prior has previously published in the international journals Nature Physics and Nature Communications.
Source: UPCT
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