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RESEARCH PRODUCT
Anomalous thermalization of nonlinear wave systems
Stéphane RandouxAntonio PicozziPierre SuretHans-rudolf Jauslinsubject
PhysicsThermodynamic equilibriumGeneral Physics and AstronomyFrequency spaceKinetic energy01 natural sciencesSystem a010309 opticssymbols.namesakeNonlinear systemThermalisationClassical mechanics0103 physical sciencessymbols010306 general physicsHamiltonian (quantum mechanics)ComputingMilieux_MISCELLANEOUSCoherence (physics)description
We report theoretically and experimentally in an optical system a process of anomalous thermalization of one-dimensional nonlinear Hamiltonian waves. It is characterized by an irreversible evolution of the waves towards a specific equilibrium state of a fundamental different nature than the expected thermodynamic equilibrium state. A kinetic approach of the problem reveals that this phenomenon is due to the existence of a local invariant in frequency space. A novel family of equilibrium distributions is discovered, which is found in quantitative agreement with the numerical simulations.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2010-02-03 |