Kinetic Monte Carlo Approach to Non-equilibrium Bosonic Systems

TL;DR

This paper applies a Kinetic Monte Carlo method to model non-equilibrium bosonic systems, specifically exciton-polariton condensates and bosonic cascade lasers, revealing insights into their coherence properties and state formation mechanisms.

Contribution

It introduces a Kinetic Monte Carlo approach for non-equilibrium bosonic systems, enabling the study of coherence crossover and output coherence in cascaded lasers.

Findings

Cross-over between incoherent and coherent regimes in exciton-polariton condensates.

Potential for bosonic cascades to develop coherent output states.

Method provides a new tool for analyzing non-equilibrium bosonic phenomena.

Abstract

We consider the use of a Kinetic Monte Carlo approach for the description of non-equilibrium bosonic systems, taking non-resonantly excited exciton-polariton condensates and bosonic cascade lasers as examples. In the former case, the considered approach allows the study of the cross-over between incoherent and coherent regimes, which represents the formation of a quasi-condensate that forms purely from the action of energy relaxation processes rather than interactions between the condensing particles themselves. In the latter case, we show that a bosonic cascade can theoretically develop an output coherent state.