Vibration-assisted coherent excitation energy transfer in a detuning system

TL;DR

This paper investigates how vibrational motions influence excitation energy transfer, revealing that resonance with vibrational modes enhances coherent transfer efficiency and quantum interference effects significantly impact the dynamics.

Contribution

It introduces a detailed analysis of vibrational-assisted energy transfer in a detuning system, highlighting the conditions for optimal coherent transfer and interference effects.

Findings

Strong coherent transfer occurs when detuning matches vibrational frequency.

Quantum interference between transfer channels significantly affects dynamics.

Vibrational modes can enhance energy transfer efficiency.

Abstract

The roles of the vibration motions played in the excitation energy transfer process are studied. It is found that a strong coherent transfer in the hybrid system emerges when the detuning between the donor and the acceptor equals the intrinsic frequency of the vibrational mode, and as a result the energy can be transferred into the acceptor much effectively. Three cases of the donor and the acceptor coupling with vibrational modes are investigated respectively. We find that the quantum interference between the two different transfer channels via the vibrational modes can affects the dynamics of the system significantly.