Bose condensation in a model microcavity

TL;DR

This paper presents an exactly solvable model for polariton condensation in optical microcavities, capturing equilibrium properties of dipole-active excitons coupled to a photon mode beyond low-density approximations.

Contribution

It introduces a simplified, exactly solvable model that describes polariton condensation physics beyond the low-density bosonic limit.

Findings

Provides an exact solution for the coupled exciton-photon system.

Describes equilibrium properties of polariton condensates.

Extends understanding of condensation beyond low-density regimes.

Abstract

We study the equilibrium properties of a system of dipole-active excitons coupled to a single photon mode at fixed total excitation. Treating the presence or absence of a trapped exciton as a two-level system produces a model that is exactly soluble. It gives a simple description of the physics of polariton condensation in optical cavities beyond the low-density bosonic regime.