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相关论文: Statistics of extreme events in integrable turbule…

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We use the spectral theory of soliton gas for the one-dimensional focusing nonlinear Schr\"odinger equation (fNLSE) to describe the statistically stationary and spatially homogeneous integrable turbulence emerging at large times from the…

斑图形成与孤子 · 物理学 2024-11-12 D. S. Agafontsev , T. Congy , G. A. El , S. Randoux , G. Roberti , P. Suret

We develop a general analytical framework for determining the probability distribution of random nonlinear wave fields governed by the focusing nonlinear Schr\"odinger equation (fNLSE) in regimes where typical realizations are dominated by…

斑图形成与孤子 · 物理学 2026-05-08 T. Congy , G. A. El

We study experimentally, in a large-scale basin, the propagation of unidirectional deep water gravity waves stochastically modulated in phase. We observe the emergence of nonlinear localized structures that evolve on a stochastic wave…

斑图形成与孤子 · 物理学 2018-10-19 A Cazaubiel , G. Michel , S Lepot , B Semin , S Aumaître , M Berhanu , Félicien Bonnefoy , Eric Falcon

Soliton gas or soliton turbulence is a subject of intense studies due to its great importance to optics, hydrodynamics, electricity, chemistry, biology and plasma physics. Usually, this term is used for integrable models where solitons…

流体动力学 · 物理学 2023-10-10 Marcelo V. Flamarion , Efim Pelinovsky , Ekaterina Didenkulova

In the framework of the focusing Nonlinear Schrodinger (NLS) equation we study numerically the nonlinear stage of the modulation instability (MI) of the condensate. As expected, the development of the MI leads to formation of "integrable…

可精确求解与可积系统 · 物理学 2015-09-15 D. S. Agafontsev , V. E. Zakharov

We study numerically the integrable turbulence in the framework of the one-dimensional nonlinear Schrodinger equation (1D-NLSE) of the focusing type using a new approach called the "growing of turbulence". In this approach, we add a small…

可精确求解与可积系统 · 物理学 2022-12-09 D. S. Agafontsev , A. A. Gelash , R. I. Mullyadzhanov , V. E. Zakharov

We review spectral theory of soliton gases in integrable dispersive hydrodynamic systems. We first present a phenomenological approach based on the consideration of phase shifts in pairwise soliton collisions and leading to the kinetic…

斑图形成与孤子 · 物理学 2023-06-14 Gennady A. El

We present an analytical model of integrable turbulence in the focusing nonlinear Schr\"odinger (fNLS) equation, generated by a one-parameter family of finite-band elliptic potentials in the semiclassical limit. We show that the spectrum of…

可精确求解与可积系统 · 物理学 2024-08-02 Gino Biondini , Gennady A. El , Xu-Dan Luo , Jeffrey Oregero , Alexander Tovbis

We perform statistical analysis on discrete nonlinear waves generated though modulational instability in the context of the Salerno model that interpolates between the intergable Ablowitz-Ladik (AL) equation and the nonintegrable discrete…

斑图形成与孤子 · 物理学 2009-11-13 A. Maluckov , Lj. Hadzievski , N. Lazarides , G. P. Tsironis

We study the formation of extreme events in incoherent systems described by envelope equations, such as the Nonliner Schr\"odinger equation. We derive an identity that relates the evolution of the kurtosis (a measure of the relevance of the…

混沌动力学 · 物理学 2016-08-24 M. Onorato , D. Proment , G. El , S. Randoux , P. Suret

We report optical fiber experiments allowing to investigate integrable turbulence in the focusing regime of the one dimensional nonlinear Schr\"odinger equation (1D-NLSE). Our experiments are very similar in their principle to water tank…

斑图形成与孤子 · 物理学 2015-04-16 Pierre Walczak , Stéphane Randoux , Pierre Suret

We analyze a set of bidirectional wave experiments in a linear wave flume of which some are conducive to integrable turbulence. In all experiments the wavemaker forcing is sinusoidal and the wave motion is recorded by seven high-resolution…

流体动力学 · 物理学 2022-10-11 Ivan Redor , Hervé Michallet , Nicolas Mordant , Eric Barthélemy

The spatiotemporal complexity induced by perturbed initial excitations through the development of modulational instability in nonlinear lattices with or without disorder, may lead to the formation of very high amplitude, localized transient…

无序系统与神经网络 · 物理学 2019-07-19 G. P. Tsironis , N. Lazarides , A Maluckov , Lj. Hadzievski

The concept of Nonlinear dispersion relation (NDR) is used in various fields of Physics (nonlinear optics, hydrodynamics, hydroelasticity, mechanics, quantum optics, plasma physics,...) to characterize fundamental phenomena induced by…

We study numerically the integrable turbulence in the framework of the focusing one-dimensional nonlinear Schrodinger equation using a new method -- the "growing of turbulence". We add to the equation a weak controlled pumping term and…

斑图形成与孤子 · 物理学 2020-09-29 D. S. Agafontsev , V. E. Zakharov

We investigate theoretically the fundamental phenomenon of the spontaneous, noise-induced modulational instability (MI) of a plane wave. The long-term statistical properties of the noise-induced MI have been previously observed in…

可精确求解与可积系统 · 物理学 2019-12-11 Andrey Gelash , Dmitry Agafontsev , Vladimir Zakharov , Gennady El , Stephane Randoux , Pierre Suret

We study numerically the integrable turbulence developing from strongly nonlinear partially coherent waves, in the framework of the focusing one-dimensional nonlinear Schrodinger equation. We find that shortly after the beginning of motion…

斑图形成与孤子 · 物理学 2021-03-24 D. S. Agafontsev , S. Randoux , P. Suret

We examine statistical properties of integrable turbulence in the defocusing and focusing regimes of one-dimensional small-dispersion nonlinear Schrodinger equation (1D-NLSE). Specifically, we study the 1D-NLSE evolution of partially…

可精确求解与可积系统 · 物理学 2019-09-25 Giacomo Roberti , Gennady El , Stephane Randoux , Pierre Suret

We study numerically the properties of (statistically) homogeneous soliton gas depending on soliton density (proportional to number of solitons per unit length) and soliton velocities, in the framework of the focusing one-dimensional…

斑图形成与孤子 · 物理学 2018-10-24 A. A. Gelash , D. S. Agafontsev

We examine the general question of statistical changes experienced by ensembles of nonlinear random waves propagating in systems ruled by integrable equations. In our study that enters within the framework of integrable turbulence, we…

光学 · 物理学 2016-08-24 S. Randoux , P. Walczak , M. Onorato , P. Suret
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