Dynamical Instability of a Nonequilibrium Exciton-Polariton Condensate
Loading...
Access rights
openAccess
acceptedVersion
URL
Journal Title
Journal ISSN
Volume Title
A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
This publication is imported from Aalto University research portal.
View publication in the Research portal (opens in new window)
View/Open full text file from the Research portal (opens in new window)
Other link related to publication (opens in new window)
View publication in the Research portal (opens in new window)
View/Open full text file from the Research portal (opens in new window)
Other link related to publication (opens in new window)
Date
Department
Major/Subject
Mcode
Degree programme
Language
en
Pages
8
Series
ACS Photonics, Volume 5, issue 1, pp. 111-118
Abstract
By imaging single-shot realizations of an organic polariton quantum fluid, we observe the long-sought dynamical instability of nonequilibrium condensates. We find an excellent agreement between the experimental data and a numerical simulation of the open-dissipative Gross-Pitaevskii equation, without performing any parameter fitting, which allows us to draw several important conclusions about the physics of the system. We find that the reservoir dynamics are in the strongly nonadiabatic regime, which renders the complex Ginzburg-Landau description invalid. The observed transition from stable to unstable fluid can only be explained by taking into account the specific form of reservoir-mediated instability as well as particle currents induced by the finite extent of the pump spot.Description
| openaire: EC/H2020/745115/EU//OPLD
Other note
Citation
Bobrovska, N, Matuszewski, M, Daskalakis, K S, Maier, S A & Kéna-Cohen, S 2018, 'Dynamical Instability of a Nonequilibrium Exciton-Polariton Condensate', ACS Photonics, vol. 5, no. 1, pp. 111-118. https://doi.org/10.1021/acsphotonics.7b00283