Photosynthetic reaction center as a quantum heat engine

  title={Photosynthetic reaction center as a quantum heat engine},
  author={Konstantin E. Dorfman and Dmitri V. Voronine and Shaul Mukamel and Marlan O. Scully},
  journal={Proceedings of the National Academy of Sciences},
  pages={2746 - 2751}
Two seemingly unrelated effects attributed to quantum coherence have been reported recently in natural and artificial light-harvesting systems. First, an enhanced solar cell efficiency was predicted and second, population oscillations were measured in photosynthetic antennae excited by sequences of coherent ultrashort laser pulses. Because both systems operate as quantum heat engines (QHEs) that convert the solar photon energy to useful work (electric currents or chemical energy, respectively… 

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