First-order dissipative phase transition in an exciton-polariton condensate
Abstract
We investigate the phase diagram of a two-dimensional driven-dissipative system of polaritons coupled to the excitonic reservoir. We find that two critical points exists. The first corresponds to the quasi-condensation and the second to a first-order phase transition from the non-uniform state with spatially modulated density to a uniform state. The latter is related to the modulational instability of a homogeneous state due to the repulsive interactions with the non-condensed reservoir. The first-order character of the transition is evidenced by a discontinuity in the density and the correlation length as well as the phase coexistence and metastability. Moreover, we show that a signature of a Berezinskii-Kosterlitz-Thouless-like transition can be observed in the non-uniform phase.
Keywords
Cite
@article{arxiv.2104.07385,
title = {First-order dissipative phase transition in an exciton-polariton condensate},
author = {Galbadrakh Dagvadorj and Michal Kulczykowski and Marzena H. Szymanska and Michal Matuszewski},
journal= {arXiv preprint arXiv:2104.07385},
year = {2021}
}