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An experimental procedure for studying soliton gases in shallow water is devised. Nonlinear waves propagate at constant depth in a 34\,m-long wave flume. At one end of the flume, the waves are generated by a piston-type wave-maker. The…

流体动力学 · 物理学 2022-09-09 Ivan Redor , Eric Barthélemy , Nicolas Mordant , Hervé Michallet

The defocusing nonlinear Schr\"odinger (NLS) equation has no the modulational instability, and was not found to possess the rogue wave (RW) phenomenon up to now. In this paper, we firstly investigate some novel nonlinear wave structures in…

斑图形成与孤子 · 物理学 2021-11-19 Li Wang , Zhenya Yan

The nonlinear propagation of ion-acoustic (IA) waves (IAWs), which are governed by the nonlinear Schr\"{o}dinger equation (NLSE), in multi-pair plasmas (MPPs) containing adiabatic positive and negative ion fluids as well as non-extensive…

等离子体物理 · 物理学 2019-10-02 S. Khondaker , A. Mannan , N. A. Chowdhury , A. A. Mamun

We study the (1+1) focussing nonlinear Schr\"{o}dinger equation for an initial condition with compactly-supported parabolic profile and phase depending quadratically on the spatial coordinate. In the absence of dispersion, using the natural…

数学物理 · 物理学 2023-07-07 F. Demontis , G. Ortenzi , G. Roberti , M. Sommacal

This paper numerically investigates the statistical properties of rogue waves and their generation mechanisms in integrable turbulence, taking the Gerdjikov-Ivanov (GI) equation as the research object. The eigenvalue spectra of the…

斑图形成与孤子 · 物理学 2026-05-08 Wei-Qi Peng , Xiao-Wang Lan , Shou-Fu Tian

In this paper, using the Darboux transformation, we demonstrate the generation of first order breather and higher-order rogue waves from a generalized nonlinear Schr\"odinger equation with several higher-order nonlinear effects representing…

可精确求解与可积系统 · 物理学 2013-06-06 L. H. Wang , K. Porsezian , J. S. He

General rogue waves in the Davey-Stewartson-I equation are derived by the bilinear method. It is shown that the simplest (fundamental) rogue waves are line rogue waves which arise from the constant background with a line profile and then…

可精确求解与可积系统 · 物理学 2015-06-05 Yasuhiro Ohta , Jianke Yang

In this paper we study the properties of the chaotic wave fields generated in the frame of the Kundu-Eckhaus equation (KEE). Modulation instability results in a chaotic wave field which exhibits small-scale filaments with a free propagation…

光学 · 物理学 2016-03-23 Cihan Bayindir

A nonlinear beatwave regime of plasma wave excitation is considered. Two beatwave drivers are considered: intensity-modulated laser pulse and density-modulated (microbunched) electron beam. It is shown that a long beatwave pulse can excite…

等离子体物理 · 物理学 2008-11-26 Gennady Shvets

Numerical simulations of fully nonlinear equations of motion for long-crested waves at deep water demonstrate that in elongate wave groups the formation of extreme waves occurs most intensively if in an initial state the wave fronts are…

流体动力学 · 物理学 2011-10-11 V. P. Ruban

We consider the problem of large wave prediction in two-dimensional water waves. Such waves form due to the synergistic effect of dispersive mixing of smaller wave groups and the action of localized nonlinear wave interactions that leads to…

大气与海洋物理 · 物理学 2017-04-26 Mohammad Farazmand , Themistoklis P. Sapsis

A new exactly solvable (1+1)-dimensional complex nonlinear wave equation exhibiting rich ana- lytic properties has been introduced. A rogue wave (RW), localized in space-time like Peregrine RW solution, though richer due to the presence of…

斑图形成与孤子 · 物理学 2019-03-27 Abhik Mukherjee , Anjan Kundu

We for the first time demonstrate that the widely existed nonlinear waves such as rogue waves, contain Dirac monopoles. We find that the density zeros of these nonlinear waves on an extended complex plane can constitute the Dirac virtual…

斑图形成与孤子 · 物理学 2022-08-16 L. -C. Zhao , L. -Z. Meng , Y. -H. Qin , Z. -Y. Yang , J. Liu

The Fokas-Lenells (FL) equation arises as a model eqution which describes for nonlinear pulse propagation in optical fibers by retaining terms up to the next leading asymptotic order (in the leading asymptotic order the nonlinear…

可精确求解与可积系统 · 物理学 2015-06-11 Jingsong He , Shuwei Xu , Kuppuswamy Porsezian

Nonlinear dynamics of surface gravity waves trapped by an opposing jet current is studied analytically and numerically. For wave fields narrowband in frequency but not necessarily with narrow angular distributions the developed asymptotic…

流体动力学 · 物理学 2017-03-17 Victor Shrira , Alexey Slunyaev

We construct breather and rogue wave solutions of a variable coefficient nonlinear Schr\"odinger equation with an external linear potential. This generalized model describes the nonlinear wave propagation in an inhomogeneous plasma/medium.…

可精确求解与可积系统 · 物理学 2014-07-14 K. Manikandan , M. Senthilvelan

Diffusive Radiation is a new type of radiation predicted to occur in randomly inhomogeneous media due to the multiple scattering of pseudophotons. This theoretical effect is now observed experimentally. The radiation is generated by the…

Experimental results on an auto-oscillatory pattern observed in a complex plasma are presented. The experiments are performed with an argon plasma which is produced under microgravity conditions using a capacitively-coupled rf discharge at…

The excitation of large amplitude nonlinear waves is achieved via parametric autoresonance of Faraday waves. We experimentally demonstrate that phase locking to low amplitude driving can generate persistent high-amplitude growth of…

流体动力学 · 物理学 2009-11-11 Oded Ben-David , Michael Assaf , Jay Fineberg , Baruch Meerson

An analytical method for constructing various coherent localized solutions with short-lived characteristics is proposed based on a novel self-mapping transformation of the (2+1) dimensional KdV equation. The highlight of this method is that…

斑图形成与孤子 · 物理学 2024-05-22 Jie-Fang Zhang , Mei-zhen Jin , Meng-yang Zhang