Journal
ANNALEN DER PHYSIK
Volume 527, Issue 9-10, Pages 592-600Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/andp.201500139
Keywords
electronic energy transfer; quantum dynamics; photosynthetic complexes
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Funding
- DFG [Sonderforschungsbereich 925, NA394/2-1]
- German Academic Exchange Service (DAAD)
- excellence cluster 'The Hamburg Centre for Ultrafast Imaging - Structure, Dynamics and Control of Matter at the Atomic Scale' of the Deutsche Forschungsgemeinschaft
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We study the quantum exciton dynamics in light-harvesting complexes under the influence of underdamped vibrational molecular modes. We observe prolonged coherent population oscillations between different pigments due to an underdamped mode connected to the originally excited pigment. At the same time, an underdamped vibration at the exit site of the complex provides additional channels for the excitation energy transfer towards the reaction center which shortens the transfer times.
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