Polariton condensation in photonic molecules

TL;DR

This paper demonstrates polariton condensation in coupled micropillars, revealing how exciton interactions influence the condensation process and the resulting polariton states, emphasizing the importance of relaxation kinetics.

Contribution

It provides new insights into how exciton interactions and relaxation kinetics affect polariton condensation in photonic molecules.

Findings

Condensation occurs on both binding and anti-binding states.

The position of excitons influences the condensate state.

Relaxation kinetics are crucial in the condensation process.

Abstract

We report on polariton condensation in photonic molecules formed by two coupled micropillars. We show that the condensation process is strongly affected by the interaction with the cloud of uncondensed excitons. Depending on the spatial position of these excitons within the molecule, condensation can be triggered on both binding and anti-binding polariton states of the molecule, on a metastable state or a total transfer of the condensate into one of the micropillars can be obtained. Our results highlight the crucial role played by relaxation kinetics in the condensation process.