Anomalous Quantum Propagation of Microcavity Exciton Polaritons

Abstract: Here, we explore the quantum propagation of exciton polaritons in semiconductor microcavities, exhibiting intriguing effects such as interactions, decay, and disorder scatterings. Our investigation uncovers anomalies in their quantum propagation, deviating from predictions based on existing theories. By applying scaling theory, we elucidate the true nature of exciton polariton propagation, unveiling a localization phase that characteristically differs from Anderson localization. Our numerical results agree with the self-consistent theory developed for exciton polariton condensates, incorporating non-linearity and finite lifetime.