Non-equilibrium condensation in periodic polariton lattices

TL;DR

This paper theoretically investigates non-equilibrium Bose-Einstein condensation in periodic polariton lattices with a localized reservoir, identifying key parameters for condensation in defect states within bandgaps.

Contribution

It provides an analytical framework for understanding how defect states in bandgaps facilitate polariton condensation under non-equilibrium conditions.

Findings

Analytical determination of parameters for defect state condensation.

Identification of bandgap conditions favoring condensation.

Insights into the role of localized reservoirs in polariton lattices.

Abstract

We study theoretically the Bose-Einstein condensation in periodic polariton lattices in presence of a localized reservoir. Using the Schr\"odinger and Boltzmann equations, we find analytically the parameters determining the choice of the bandgap for condensation on the defect states.