Sent to you via Google Reader How "quantum" is the exciton dynamics in the Fenna-Matthews-Olson complex?. (arXiv:1104.2031v1 [cond-mat.mes-hall]) Authors: Peter Nalbach, Daniel Braun, Michael Thorwart We present numerically exact results for the quantum coherent energy transfer in the Fenna-Matthews-Olson molecular aggregate under realistic physiological conditions, including also vibrational fluctuations of the protein and the pigments. We find that although the coherence times are to some extent reduced as compared to the often assumed Ohmic fluctuation spectrum, the exciton dynamics is far from being a classical hoping process. We quantify the "quantumness" of the energy transfer as distance of the density matrix to the classical pointer states for the energy current operator. Sent from my iPhone