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Investigating Quantum Electronic or Vibronic Coherences via Energy Migration Dynamics in Light-Harvesting Complex II

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Abstract

The possibility of quantum electronic coherence in photosynthetic complexes is a hotly-debated topic. Our two-dimensional spectroscopic results at physiologically-relevant temperatures attribute these commonly-seen oscillations to vibrational, instead of excitonic, origins. Expanding our laser excitation wavelength into the vibronic shoulder of the complex should provide the smoking gun for the vibrational nature of the oscillations.

© 2016 Optical Society of America

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