Energy and Phase Randomization in Large Molecules as Probed by Laser Spectroscopy

Abstract

In this paper, which is based on the materials presented at the Bielefeld workshop on Molecular Structure and Energy Scrambling, I would like to focus on the problems pertaining to energy and phase randomization in large molecules. Specifically, I would like to discuss the following major problems: a) electronic dephasing as manifested in the interactions between large-molecules in different electronic states and a bath of dense low-frequency modes. b) vibrational dephasing as manifested in the dynamics of localized vibrational energy in real large molecules. c) population and phase changes in multi-level systems (optical T1 and T2).

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