Dynamical instability of a nonequilibrium exciton-polariton condensate
File(s)
Accepted version
Author(s)
Bobrovska, Nataliya
Matuszewski, Michal
Daskalakis, Konstantinos S
Maier, Stefan A
Kena-Cohen, Stephane
Type
Journal Article
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.
Date Issued
2017-08-10
Date Acceptance
2017-03-21
Citation
ACS Photonics, 2017, 5 (1), pp.111-118
ISSN
2330-4022
Publisher
American Chemical Society
Start Page
111
End Page
118
Journal / Book Title
ACS Photonics
Volume
5
Issue
1
Copyright Statement
© 2017 American Chemical Society. This document is the Accepted Manuscript version of a Published Work that appeared in final form in ACS Photonics, after peer review and technical editing by the publisher. To access the final edited and published work see https://dx.doi.org/10.1021/acsphotonics.7b00283
Sponsor
Engineering & Physical Science Research Council (E
Identifier
http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000423140300013&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=1ba7043ffcc86c417c072aa74d649202
Grant Number
EP/M013812/1
Subjects
Science & Technology
Technology
Physical Sciences
Nanoscience & Nanotechnology
Materials Science, Multidisciplinary
Optics
Physics, Applied
Physics, Condensed Matter
Science & Technology - Other Topics
Materials Science
Physics
exciton-polariton
Bose-Einstein condensation
organic condensate
dynamical instability
MICROCAVITY
LASER
Publication Status
Published