Nonequilibrium Precondensation of Classical Waves in Two Dimensions Propagating through Atomic Vapors - Centre de mathématiques appliquées (CMAP) Accéder directement au contenu
Article Dans Une Revue Physical Review Letters Année : 2018

Nonequilibrium Precondensation of Classical Waves in Two Dimensions Propagating through Atomic Vapors

Résumé

The nonlinear Schrödinger equation, used to describe the dynamics of quantum fluids, is known to be valid not only for massive particles but also for the propagation of light in a nonlinear medium, predicting condensation of classical waves. Here we report on the initial evolution of random waves with Gaussian statistics using atomic vapors as an efficient two dimensional nonlinear medium. Experimental and theoretical analysis of near field images reveal a phenomenon of nonequilibrium precondensation, characterized by a fast relaxation towards a precondensate fraction of up to 75%. Such precondensation is in contrast to complete thermalization to the Rayleigh-Jeans equilibrium distribution, requiring prohibitive long interaction lengths.
Fichier principal
Vignette du fichier
LF16491_ModifiedReferences.pdf (4.24 Mo) Télécharger le fichier
Origine : Fichiers éditeurs autorisés sur une archive ouverte

Dates et versions

hal-03533023 , version 1 (11-02-2022)

Identifiants

Citer

Neven Šantić, Adrien Fusaro, Sabeur Salem, Josselin Garnier, Antonio Picozzi, et al.. Nonequilibrium Precondensation of Classical Waves in Two Dimensions Propagating through Atomic Vapors. Physical Review Letters, 2018, 120 (5), pp.055301. ⟨10.1103/PhysRevLett.120.055301⟩. ⟨hal-03533023⟩
237 Consultations
46 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More