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相关论文: Soliton gas resolution and statistics of random wa…

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We use the spectral kinetic theory of soliton gas to investigate the likelihood of extreme events in integrable turbulence described by the one-dimensional focusing nonlinear Schr\"odinger equation (fNLSE). This is done by invoking a…

斑图形成与孤子 · 物理学 2024-05-21 T. Congy , G. A. El , G. Roberti , A. Tovbis , S. Randoux , P. Suret

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 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

Dynamics of solitons is considered in the framework of an extended nonlinear Schr\"odinger equation (NLSE), which is derived from a Zakharov-type model for wind-driven high-frequency (HF) surface waves in the ocean, coupled to damped…

斑图形成与孤子 · 物理学 2015-12-04 Evgeny M. Gromov , Boris A. Malomed

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 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

Soliton gases represent large random soliton ensembles in physical systems that display integrable dynamics at the leading order. Despite significant theoretical developments and observational evidence of ubiquity of soliton gases in fluids…

We measure evolution of spectra, spatial correlation functions and probability density functions (PDFs) of waves appearance for a set of one-dimensional NLS-like equations of focusing type, namely for the classical integrable Nonlinear…

光学 · 物理学 2015-03-20 Dmitry Agafontsev , Vladimir Zakharov

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

The soliton resolution conjecture for the focusing nonlinear Schrodinger equation (NLS) is the vaguely worded claim that a global solution of the NLS, for generic initial data, will eventually resolve into a radiation component that…

偏微分方程分析 · 数学 2013-04-05 Sourav Chatterjee

We measure spectra, spatial correlation functions and probability density functions (PDFs) for waves amplitudes for generalized one-dimensional nonlinear Schrodinger (NLS) equation of focusing type with saturated nonlinearity. All…

光学 · 物理学 2013-10-18 D. S. Agafontsev

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

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

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

Solitons and breathers are localized solutions of integrable systems that can be viewed as "particles'' of complex statistical objects called soliton and breather gases. In view of the growing evidence of their ubiquity in fluids and…

斑图形成与孤子 · 物理学 2020-05-13 Gennady El , Alexander Tovbis

Dynamics of solitons is considered in the framework of the extended nonlinear Schrodinger equation (NLSE), which is derived from a system of Zakharov's type for the interaction between high- and low-frequency (HF and LF) waves, in which the…

斑图形成与孤子 · 物理学 2014-01-14 E. M. Gromov , B. A. Malomed

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 investigate the fundamental problem of the nonlinear wavefield scattering data corrections in response to a perturbation of initial condition using inverse scattering transform theory. We present a complete theoretical linear…

斑图形成与孤子 · 物理学 2021-06-16 Rustam Mullyadzhanov , Andrey Gelash

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

In this paper, we study the spectral theory of soliton condensates - a special limit of soliton gases - for the focusing NLS (fNLS). In particular, we analyze the kinetic equation for the fNLS circular condensate, which represents the first…

斑图形成与孤子 · 物理学 2024-08-01 Alexander Tovbis , Fudong Wang
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