Figure 2
From: Origin of long-lived quantum coherence and excitation dynamics in pigment-protein complexes
The schematic for exciton-environment interaction.
(a) The coupling between bare exciton and environment; (b) The exciton-vibration coupling forms a new composite called polaron. In (b) the bare exciton (red) is surrounded by a cloud consisting of discrete vibrational modes (blue), which leads to the suppression of the coupling strength between exciton and environment.
