Kardar–Parisi–Zhang universality in a ...
Type de document :
Article dans une revue scientifique: Article original
Titre :
Kardar–Parisi–Zhang universality in a one-dimensional polariton condensate
Auteur(s) :
Fontaine, Quentin [Auteur]
Centre de Nanosciences et de Nanotechnologies [C2N]
Squizzato, Davide [Auteur]
Laboratoire de physique et modélisation des milieux condensés [LPM2C ]
Baboux, Florent [Auteur]
Centre de Nanosciences et de Nanotechnologies [C2N]
Laboratoire Matériaux et Phénomènes Quantiques [MPQ (UMR_7162)]
Amelio, Ivan [Auteur]
Università degli Studi di Trento = University of Trento [UNITN]
Lemaître, Aristide [Auteur]
Centre de Nanosciences et de Nanotechnologies [C2N]
Morassi, Martina [Auteur]
Centre de Nanosciences et de Nanotechnologies [C2N]
Sagnes, Isabelle [Auteur]
Centre de Nanosciences et de Nanotechnologies [C2N]
Le Gratiet, Luc [Auteur]
Centre de Nanosciences et de Nanotechnologies [C2N]
Harouri, Abdelmounaim [Auteur]
Centre de Nanosciences et de Nanotechnologies [C2N]
Wouters, Michiel [Auteur]
Universiteit Antwerpen = University of Antwerpen [Antwerpen]
Carusotto, Iacopo [Auteur]
Università degli Studi di Trento = University of Trento [UNITN]
Amo Garcia, Alberto [Auteur]
Laboratoire de Physique des Lasers, Atomes et Molécules - UMR 8523 [PhLAM]
Richard, Maxime [Auteur]
Nanophysique et Semiconducteurs [NEEL - NPSC]
Minguzzi, Anna [Auteur]
Laboratoire de physique et modélisation des milieux condensés [LPM2C ]
Canet, Léonie [Auteur]
Laboratoire de physique et modélisation des milieux condensés [LPM2C ]
Ravets, Sylvain [Auteur]
Centre de Nanosciences et de Nanotechnologies [C2N]
Bloch, Jacqueline [Auteur]
Centre de Nanosciences et de Nanotechnologies [C2N]
Centre de Nanosciences et de Nanotechnologies [C2N]
Squizzato, Davide [Auteur]
Laboratoire de physique et modélisation des milieux condensés [LPM2C ]
Baboux, Florent [Auteur]
Centre de Nanosciences et de Nanotechnologies [C2N]
Laboratoire Matériaux et Phénomènes Quantiques [MPQ (UMR_7162)]
Amelio, Ivan [Auteur]
Università degli Studi di Trento = University of Trento [UNITN]
Lemaître, Aristide [Auteur]
Centre de Nanosciences et de Nanotechnologies [C2N]
Morassi, Martina [Auteur]
Centre de Nanosciences et de Nanotechnologies [C2N]
Sagnes, Isabelle [Auteur]
Centre de Nanosciences et de Nanotechnologies [C2N]
Le Gratiet, Luc [Auteur]
Centre de Nanosciences et de Nanotechnologies [C2N]
Harouri, Abdelmounaim [Auteur]
Centre de Nanosciences et de Nanotechnologies [C2N]
Wouters, Michiel [Auteur]
Universiteit Antwerpen = University of Antwerpen [Antwerpen]
Carusotto, Iacopo [Auteur]
Università degli Studi di Trento = University of Trento [UNITN]
Amo Garcia, Alberto [Auteur]

Laboratoire de Physique des Lasers, Atomes et Molécules - UMR 8523 [PhLAM]
Richard, Maxime [Auteur]
Nanophysique et Semiconducteurs [NEEL - NPSC]
Minguzzi, Anna [Auteur]
Laboratoire de physique et modélisation des milieux condensés [LPM2C ]
Canet, Léonie [Auteur]
Laboratoire de physique et modélisation des milieux condensés [LPM2C ]
Ravets, Sylvain [Auteur]
Centre de Nanosciences et de Nanotechnologies [C2N]
Bloch, Jacqueline [Auteur]
Centre de Nanosciences et de Nanotechnologies [C2N]
Titre de la revue :
Nature
Pagination :
687-691
Éditeur :
Nature Publishing Group
Date de publication :
2022
ISSN :
0028-0836
Discipline(s) HAL :
Physique [physics]/Matière Condensée [cond-mat]/Systèmes mésoscopiques et effet Hall quantique [cond-mat.mes-hall]
Résumé en anglais : [en]
Revealing universal behaviours is a hallmark of statistical physics. Phenomena such as the stochastic growth of crystalline surfaces and of interfaces in bacterial colonies, and spin transport in quantum magnets all belong ...
Lire la suite >Revealing universal behaviours is a hallmark of statistical physics. Phenomena such as the stochastic growth of crystalline surfaces and of interfaces in bacterial colonies, and spin transport in quantum magnets all belong to the same universality class, despite the great plurality of physical mechanisms they involve at the microscopic level. More specifically, in all these systems, space–time correlations show power-law scalings characterized by universal critical exponents. This universality stems from a common underlying effective dynamics governed by the nonlinear stochastic Kardar–Parisi–Zhang (KPZ) equation7. Recent theoretical works have suggested that this dynamics also emerges in the phase of out-of-equilibrium systems showing macroscopic spontaneous coherence. Here we experimentally demonstrate that the evolution of the phase in a driven-dissipative one-dimensional polariton condensate falls in the KPZ universality class. Our demonstration relies on a direct measurement of KPZ space–time scaling laws, combined with a theoretical analysis that reveals other key signatures of this universality class. Our results highlight fundamental physical differences between out-of-equilibrium condensates and their equilibrium counterparts, and open a paradigm for exploring universal behaviours in driven open quantum systems.Lire moins >
Lire la suite >Revealing universal behaviours is a hallmark of statistical physics. Phenomena such as the stochastic growth of crystalline surfaces and of interfaces in bacterial colonies, and spin transport in quantum magnets all belong to the same universality class, despite the great plurality of physical mechanisms they involve at the microscopic level. More specifically, in all these systems, space–time correlations show power-law scalings characterized by universal critical exponents. This universality stems from a common underlying effective dynamics governed by the nonlinear stochastic Kardar–Parisi–Zhang (KPZ) equation7. Recent theoretical works have suggested that this dynamics also emerges in the phase of out-of-equilibrium systems showing macroscopic spontaneous coherence. Here we experimentally demonstrate that the evolution of the phase in a driven-dissipative one-dimensional polariton condensate falls in the KPZ universality class. Our demonstration relies on a direct measurement of KPZ space–time scaling laws, combined with a theoretical analysis that reveals other key signatures of this universality class. Our results highlight fundamental physical differences between out-of-equilibrium condensates and their equilibrium counterparts, and open a paradigm for exploring universal behaviours in driven open quantum systems.Lire moins >
Langue :
Anglais
Comité de lecture :
Oui
Audience :
Internationale
Vulgarisation :
Non
Source :
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