Transient Information Partition in Coherent Exciton-Phonon-Photon Dynamics (opens in new tab)

We study transient information partition in a coherent exciton-phonon-photon system using subsystem-resolved quantum mutual information (QMI). By employing a model with excitonic, phononic, and photonic degrees of freedom, we analyze the dynamics in the $J$-$\nu$ plane, where $J$ characterizes excitonic delocalization and $\nu$ denotes the exciton-phonon coupling strength. By comparing time-averaged QMI maps with the absorbed photon number, we s...