Modeling of Transient Absorption Spectra in Exciton Charge-Transfer Systems

  • Time-resolved spectroscopy provides the main tool for analyzing the dynamics of excitonic energy transfer in light-harvesting complexes. To infer time-scales and effective coupling parameters from experimental data requires to develop numerical exact theoretical models. The finite duration of the laser-molecule interactions and the reorganization process during the exciton migration affect the location and strength of spectroscopic signals. We show that the non-perturbative hierarchical equations of motion (HEOM) method captures these processes in a model exciton system, including the charge transfer state.

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Author:Tobias Kramer, Mirta Rodriguez, Yaroslav Zelinskyi
Document Type:Article
Parent Title (English):Journal of Physical Chemistry B
Year of first publication:2016
DOI:http://dx.doi.org/10.1021/acs.jpcb.6b09858

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