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On the influence of underdamped vibrations on coherence and energy transfer times in light‐harvesting complexes
Author(s) -
MujicaMartinez C. A.,
Nalbach P.
Publication year - 2015
Publication title -
annalen der physik
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.009
H-Index - 68
eISSN - 1521-3889
pISSN - 0003-3804
DOI - 10.1002/andp.201500139
Subject(s) - coherence (philosophical gambling strategy) , vibration , excited state , energy transfer , excitation , exciton , physics , quantum , population , atomic physics , materials science , molecular physics , chemical physics , quantum mechanics , demography , sociology
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.