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

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.

References in corpus (4)

• Reduced hierarchical equations of motion in real and imaginary time: Correlated initial states and thermodynamic quantities
• Dynamics of quantum dissipation systems interacting with bosonic canonical bath: Hierarchical equations of motion approach
• Real-Time and Imaginary-Time Quantum Hierarchal Fokker-Planck Equations
• Impact of environmentally induced fluctuations on quantum mechanically mixed electronic and vibrational pigment states in photosynthetic energy transfer and 2D electronic spectra

Cited by in corpus (4)

• Quantum mechanics of open systems: Dissipaton theories
• Correlated vibration-solvent effects on the non-Condon exciton spectroscopy
• Insights into photosynthetic energy transfer gained from free-energy structure: Coherent transport, incoherent hopping, and vibrational assistance revisited
• Vibrational response functions for multidimensional electronic spectroscopy: from Duschinsky rotations to multimode squeezed coherent states