Excitations and superfluidity in non-equilibrium Bose-Einstein condensates of exciton-polaritons

TL;DR

This paper introduces a generic model for non-equilibrium Bose-Einstein condensates of exciton-polaritons, analyzing their excitation spectrum and defect scattering, relevant for understanding superfluidity in driven-dissipative systems.

Contribution

It provides a new modeling framework specifically tailored for non-resonantly pumped polariton condensates in microcavities, capturing their non-equilibrium dynamics.

Findings

Analysis of the excitation spectrum of non-equilibrium condensates

Discussion of defect scattering phenomena in polariton condensates

Insights into superfluid-like behavior in driven-dissipative systems

Abstract

We present a generic model for the description of non-equilibrium Bose-Einstein condensates, suited for the modelling of non-resonantly pumped polariton condensates in a semiconductor microcavity. The excitation spectrum and scattering of the non-equilibrium condensate with a defect are discussed.