Anomalous Quantum Propagation of Microcavity Exciton Polaritons

TL;DR

This paper investigates the unusual quantum propagation behaviors of exciton polaritons in microcavities, revealing a localization phase distinct from Anderson localization through scaling theory and numerical analysis.

Contribution

It introduces a new understanding of exciton polariton localization, incorporating non-linearity and finite lifetime effects, which deviates from existing theories.

Findings

Discovery of anomalous propagation behaviors

Identification of a unique localization phase

Numerical results align with a new self-consistent theory

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.