Eliezer Estrecho, ANU
We study the emergence of coherence in a circularly-confined two-dimensional Bose gas of exciton polaritons with tuneable interactions. We experimentally and theoretically investigate phase correlations and thermalisation properties over a wide range of interaction strengths, by tuning the photonic/excitonic fraction.
We find good agreement with the above-mean-field modeling of the polariton stochastic equation of motions. Our analysis allows us to quantitatively discuss the possibility to investigate the BEC-to-Berezinskii-Kosterlitz-Thouless (BKT) in driven dissipative quantum systems where thermalization is mediated by interactions, and to reveal the different regimes across the photonic-excitonic crossover.
About the presenter
Dr Eliezer Estrecho is a DECRA Fellow at the Australian National University and a Research Fellow of FLEET.
His research interests are mainly on exciton-polariton condensates, non-Hermitian physics, and strong light-matter interaction, specifically between electronic excitations (excitons) and photonic modes.