Physics – Condensed Matter – Mesoscale and Nanoscale Physics
Scientific paper
2010-03-19
Physics
Condensed Matter
Mesoscale and Nanoscale Physics
Scientific paper
We show that the quantum coherent transfer of excitations between biomolecular chromophores is strongly influenced by spatial correlations of the environmental fluctuations. The latter are due either to propagating environmental modes or to local fluctuations with a finite localization length. A simple toy model of a single donor-acceptor pair with spatially separated chromophore sites allows to investigate the influence of these spatial correlations on the quantum coherent excitation transfer. The sound velocity of the solvent determines the wave lengths of the environmental modes, which, in turn, has to be compared to the spatial distance of the chromophore sites. When the wave length exceeds the distance between donor and acceptor site, we find strong suppression of decoherence. In addition, we consider two spatially separated donor-acceptor pairs under the influence of propagating environmental modes. Depending on their wave lengths fixed by the sound velocity of the solvent material, the spatial range of correlations may extend over typical interpair distances, which can lead to an increase of the decohering influence of the solvent. Surprisingly, this effect is counteracted by increasing temperature.
Eckel Jonathan
Nalbach Peter
Thorwart Martin
No associations
LandOfFree
Quantum coherent biomolecular energy transfer with spatially correlated fluctuations does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Quantum coherent biomolecular energy transfer with spatially correlated fluctuations, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Quantum coherent biomolecular energy transfer with spatially correlated fluctuations will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-354904