Correlated vibration-solvent effects on the non-Condon exciton spectroscopy

TL;DR

This paper investigates how correlated vibrational and solvent interactions influence non-Condon exciton spectroscopy, revealing coherence enhancement through analytical and simulation methods.

Contribution

It introduces a comprehensive analysis of vibration-solvent correlations and provides analytic solutions and simulations demonstrating their effects on spectra.

Findings

Coherence enhancement due to vibration-solvent correlation

Analytic solutions for monomer absorption spectra

Simulations via dissipaton-equation-of-motion approach

Abstract

Excitation energy transfer is crucially involved in a variety of systems. During the process, the non-Condon vibronic coupling and the surrounding solvent interaction may synergetically play important roles. In this work, we study the correlated vibration-solvent influences on the non-Condon exciton spectroscopy. Statistical analysis is elaborated for the overall vibration-plus-solvent environmental effects. Analytic solutions are derived for the linear absorption of monomer systems. General simulations are accurately carried out via the dissipaton-equation-of-motion approach. The resulted spectra in either the linear absorption or strong field regime clearly demonstrate the coherence enhancement due to the synergetic vibration-solvent correlation.