Berlin 2012 – wissenschaftliches Programm
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SOE: Fachverband Physik sozio-ökonomischer Systeme
SOE 14: Networks, From Topology to Dynamics III (joint w. DY)
SOE 14.1: Vortrag
Mittwoch, 28. März 2012, 15:00–15:15, MA 004
Efficient transport and symmetries in models of Light Harvesting Systems — Tobias Zech1, •Roberto Mulet1,2, Torsten Scholak1, Thomas Wellens1, and Andreas Buchleitner1 — 1Quantum optics and statistics, Institute of Physics Albert Ludwigs University of Freiburg Hermann-Herder-Str. 3 D-79104 Freiburg — 2Group of Complex Systems, Department of Theoretical Physics. Physics Faculty, University of Havana. La Habana, Cuba
Recent experimental results suggest the existence of quantum coherence and efficient transport in Light Harvesting Systems. Particularly motivated by results on the FMO complex we study exciton transport in random tri-dimensional lattices of seven sites with long range dipolar interactions. We show that some of these networks are consistent with efficient transport.
Moreover, we present evidence that the statistically relevant Hamiltonians associated with the efficient transport are centro-symmetric. We compare our results with numerical tests on realistic Hamiltonians for Light Harvesting systems and present a finite size scaling analysis of the model. Some implications of our results for the comprehension of the role of symmetry in Biology and for Quantum Communications are outlined.