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We present an open-source Python implementation of an idealized high-order pseudo-spectral solver for the one-dimensional nonlinear Schr\"odinger equation (NLSE). The solver combines Fourier spectral spatial discretization with an adaptive…

Pattern Formation and Solitons · Physics 2025-09-09 Sandy H. S. Herho , Iwan P. Anwar , Faruq Khadami , Rusmawan Suwarman , Dasapta E. Irawan

We consider reduced-order modeling of nonlinear dispersive waves described by a class of nonlinear Schrodinger (NLS) equations. We compare two nonlinear reduced-order modeling methods: (i) The reduced Lagrangian approach which relies on the…

Dynamical Systems · Mathematics 2022-06-28 William Anderson , Mohammad Farazmand

The one-dimensional focusing nonlinear Schrodinger equation (NLSE) on an unstable condensate background is the fundamental physical model, that can be applied to study the development of modulation instability (MI) and formation of rogue…

Exactly Solvable and Integrable Systems · Physics 2018-02-14 A. A. Gelash

We explore the form of rogue wave solutions in a select set of case examples of nonlinear Schr\"odinger equations with variable coefficients. We focus on systems with constant dispersion, and present three different models that describe…

Pattern Formation and Solitons · Physics 2014-10-23 J. S. He , E. G. Charalampidis , P. G. Kevrekidis , D. J. Frantzeskakis

We construct rogue wave solutions of a fifth-order nonlinear Schr\"odinger equation on the Jacobian elliptic function background. By combining Darboux transformation and the nonlinearization of spectral problem, we generate rogue wave…

Pattern Formation and Solitons · Physics 2021-08-31 N. Sinthuja , K. Manikandan , M. Senthilvelan

We study the cubic-quartic nonlinear Schr\"odinger equation (NLS) in two and three spatial dimension. This equation arises in the mean-field description of Bose-Einstein condensates with Lee-Huang-Yang correction. We first prove global…

Analysis of PDEs · Mathematics 2021-12-20 Anudeep K. Arora , Christof Sparber

This paper investigates the asymptotic behavior of high-order vector rogue wave (RW) solutions of the coupled nonlinear Schr\"odinger (CNLS) equation in the presence of multiple large internal parameters. We report several new high-order RW…

Exactly Solvable and Integrable Systems · Physics 2026-04-30 Zixuan Deng , Huian Lin , Liming Ling

An integrable system of two-component nonlinear Ablowitz-Ladik (AL) equations is used to construct complex rogue-wave (RW) solutions in an explicit form. First, the modulational instability of continuous waves is studied in the system.…

Exactly Solvable and Integrable Systems · Physics 2017-03-31 Xiao-Yong Wen , Zhenya Yan , Boris A. Malomed

Using the inverse spectral theory of the nonlinear Schrodinger (NLS) equation we correlate the development of rogue waves in oceanic sea states characterized by the JONSWAP spectrum with the proximity to homoclinic solutions of the NLS…

Pattern Formation and Solitons · Physics 2007-05-23 Constance Schober , Alvaro Islas

We investigate, by direct numerical simulations, the dynamics of the damped and forced nonlinear Schr\"odinger (NLS) equation in the presence of a time periodic forcing and for certain parametric regimes. It is thus revealed, that the…

Pattern Formation and Solitons · Physics 2021-05-19 Sevastos Diamantidis , Theodoros P. Horikis , Nikos I. Karachalios

In this work, we explore the rogue wave patterns in the coupled Fokas-Lenells equation by using the Darboux transformation. We demonstrate that when one of the internal parameters is large enough, the general high-order rogue wave solutions…

Exactly Solvable and Integrable Systems · Physics 2023-07-06 Liming Ling , Huajie Su

We study the fundamental rogue wave solutions of the focusing nonlinear Schr\"odinger equation in the limit of large order. Using a recently-proposed Riemann-Hilbert representation of the rogue wave solution of arbitrary order $k$, we…

Exactly Solvable and Integrable Systems · Physics 2020-03-18 Deniz Bilman , Liming Ling , Peter D. Miller

We present analytical results and numerical simulations for a class of nonlinear dispersive equations in two spatial dimensions. These equations are of (derivative) nonlinear Schr\"odinger type and have recently been obtained in \cite{DLS}…

Analysis of PDEs · Mathematics 2018-12-24 J. Arbunich , C. Klein , C. Sparber

We study on dynamics of high-order rogue wave in two-component coupled nonlinear Schr\"{o}dinger equations. We find four fundamental rogue waves can emerge for second-order vector RW in the coupled system, in contrast to the high-order ones…

Pattern Formation and Solitons · Physics 2015-01-26 Liming Ling , Boling Guo , Li-Chen Zhao

In the present work, we explore the possibility of developing rogue waves as exact solutions of some nonlinear dispersive equations, such as the nonlinear Schr\"odinger equation, but also, in a similar vein, the Hirota, Davey-Stewartson,…

Pattern Formation and Solitons · Physics 2019-02-15 C. B. Ward , P. G. Kevrekidis

In this paper we examine a deformation of the derivative nonlinear Schr\"odinger (DNLS) equation, the so-called Camassa-Holm DNLS (CH-DNLS) equation. We use two asymptotic multiscale expansion methods to reduce this model to both the…

Pattern Formation and Solitons · Physics 2018-12-14 L. J. Guo , C. B. Ward , I. K. Mylonas , P. G. Kevrekidis

The nonlinear Schr\"odinger equation (NLSE) is a rich and versatile model, which in one spatial dimension has stationary solutions similar to those of the linear Schr\"odinger equation as well as more exotic solutions such as solitary waves…

Quantum Gases · Physics 2024-07-08 David B. Reinhardt , Dean Lee , Wolfgang P. Schleich , Matthias Meister

In this paper, we present a probabilistic study of rare phenomena of the cubic nonlinear Schr\"odinger equation on the torus in a weakly nonlinear setting. This equation has been used as a model to numerically study the formation of rogue…

Analysis of PDEs · Mathematics 2021-11-16 Miguel Angel Garrido , Ricardo Grande , Kristin M. Kurianski , Gigliola Staffilani

The rogue waves in a resonant erbium-doped fibre system governed by a coupled system of the nonlinear Schr\"odinger equation and the Maxwell-Bloch equation (NLS-MB equations) are given explicitly by a Taylor series expansion about the…

Exactly Solvable and Integrable Systems · Physics 2015-06-11 Jingsong He , Shuwei Xu , K. Porseizan

We study a three-wave truncation of the high-order nonlinear Schr\"odinger equation for deepwater waves (HONLS, also named Dysthe equation). We validate our approach by comparing it to numerical simulation, distinguish the impact of the…

Fluid Dynamics · Physics 2017-08-02 Andrea Armaroli , Maura Brunetti , Jérôme Kasparian
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