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Date publication
mai 2026
Journal
Physical review letters
Auteurs
Membres identifiés du Cancéropôle Est :
Pr MILLOT Guy
Tous les auteurs :
Torres T, Garnier J, Zanaglia L, Ferraro M, Michel C, Doya V, Fatome J, Kibler B, Wabnitz S, Picozzi A, Millot G
Lien Pubmed
Résumé
We theoretically and experimentally investigate spontaneous self-organization in a conservative (Hamiltonian) turbulent wave system, operating far from thermodynamic equilibrium. Our system is governed by two coherently coupled nonlinear Schrödinger equations, describing the polarization evolution of light in a dispersive nonlinear optical fiber. The analysis reveals the emergence of two fundamentally distinct turbulent regimes. In a first regime, the waves undergo a slow, irreversible thermalization process, which is accurately described by the wave turbulence kinetic equation and the associated H theorem of entropy growth. In stark contrast with this expected irreversible process, we identify a second different regime, where strong phase correlations spontaneously emerge, giving rise to a fast reversible oscillatory dynamics of the normal correlator and anomalous phase correlator. Experimental observations confirm the occurrence of both irreversible thermalization and reversible dynamics mediated by the anomalous correlated fluctuations.
Référence
Phys Rev Lett. 2026 05 1;136(17):173801
