Vibrational vs. electronic coherences in 2D spectrum of molecular systems

Details Vibrational vs. electronic coherences in 2D spectrum of molecular systems Vibrational vs. electronic coherences in 2D spectrum of molecular systems

2012-01-13

arxiv.org/abs/1201.2753v1

Physics

Chemical Physics

Scientific paper

The two-dimensional spectroscopy has recently revealed oscillatory behavior of excitation dynamics in molecular systems. However, in the majority of cases it is strongly debated if excitonic or vibrational wavepackets, or evidences of quantum transport have been observed. In this letter, the method for distinguishing between vibrational and excitonic wavepacket motion is presented, based on the phase and amplitude relationships of oscillations of distinct peaks, which has been revealed using fundamental analysis of two-dimensional spectrum of two representative systems.

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