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arXiv · 1609.03685

Effects of Herzberg--Teller vibronic coupling on coherent excitation energy transfer

Hou-Dao Zhang·Qin Qiao·Rui-Xue Xu·YiJing Yan
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Abstract

In this work, we study the effects of non-Condon vibronic coupling on the quantum coherence of excitation energy transfer, via the exact dissipaton-equation-of-motion (DEOM) evaluations on excitonic model systems. Field-triggered excitation energy transfer dynamics and two dimensional coherent spectroscopy are simulated for both Condon and non-Condon vibronic couplings. Our results clearly demonstrate that the non-Condon vibronic coupling intensifies the dynamical electronic-vibrational energy transfer and enhances the total system-and-bath quantum coherence. Moreover, the hybrid bath dynamics for non-Condon effects enriches the theoretical calculation, and further sheds light on the interpretation of the experimental nonlinear spectroscopy.

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Hou-Dao Zhang, Qin Qiao, Rui-Xue Xu, YiJing Yan. 2016-09-13. Effects of Herzberg--Teller vibronic coupling on coherent excitation energy transfer. https://doi.org/10.1063/1.4968031

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