Dynamical Instability of a Nonequilibrium Exciton-Polariton Condensate

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Dynamical Instability of a Nonequilibrium Exciton-Polariton Condensate. / Bobrovska, Nataliya; Matuszewski, Michał; Daskalakis, Konstantinos S.; Maier, Stefan A.; Kéna-Cohen, Stéphane.

In: ACS Photonics, Vol. 5, No. 1, 17.01.2018, p. 111-118.

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Bobrovska, N, Matuszewski, M, Daskalakis, KS, Maier, SA & 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

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Bobrovska, Nataliya ; Matuszewski, Michał ; Daskalakis, Konstantinos S. ; Maier, Stefan A. ; Kéna-Cohen, Stéphane. / Dynamical Instability of a Nonequilibrium Exciton-Polariton Condensate. In: ACS Photonics. 2018 ; Vol. 5, No. 1. pp. 111-118.

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@article{1a13f0456b534dd39ca113d271a132b2,
title = "Dynamical Instability of a Nonequilibrium Exciton-Polariton Condensate",
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.",
keywords = "Bose-Einstein condensation, dynamical instability, exciton-polariton, organic condensate",
author = "Nataliya Bobrovska and Michał Matuszewski and Daskalakis, {Konstantinos S.} and Maier, {Stefan A.} and St{\'e}phane K{\'e}na-Cohen",
note = "| openaire: EC/H2020/745115/EU//OPLD",
year = "2018",
month = "1",
day = "17",
doi = "10.1021/acsphotonics.7b00283",
language = "English",
volume = "5",
pages = "111--118",
journal = "ACS Photonics",
issn = "2330-4022",
number = "1",

}

RIS - Download

TY - JOUR

T1 - Dynamical Instability of a Nonequilibrium Exciton-Polariton Condensate

AU - Bobrovska, Nataliya

AU - Matuszewski, Michał

AU - Daskalakis, Konstantinos S.

AU - Maier, Stefan A.

AU - Kéna-Cohen, Stéphane

N1 - | openaire: EC/H2020/745115/EU//OPLD

PY - 2018/1/17

Y1 - 2018/1/17

N2 - 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.

AB - 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.

KW - Bose-Einstein condensation

KW - dynamical instability

KW - exciton-polariton

KW - organic condensate

UR - http://www.scopus.com/inward/record.url?scp=85040647813&partnerID=8YFLogxK

U2 - 10.1021/acsphotonics.7b00283

DO - 10.1021/acsphotonics.7b00283

M3 - Article

VL - 5

SP - 111

EP - 118

JO - ACS Photonics

JF - ACS Photonics

SN - 2330-4022

IS - 1

ER -

ID: 17385363