Intermolecular-interaction effects on quantum-phase and information-entropy dynamics of dimers interacting with a single-mode coherent field

Using a numerically exact approach to the dynamics of a molecule–photon field-coupled system, we investigate the quantum-phase and the information-entropy dynamics of molecular dimers interacting with a single-mode coherent photon field. The intermolecular interaction between monomers is treated by the dipole–dipole interaction. The influence of the dipole–dipole interaction on the feature of the collapse–revival behavior of dimer population is revealed from the viewpoint of the photon-phase dynamics and the entanglement between dimer and photon.