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In this set of papers we formulate a stand alone method to derive maximal number of linearizing transformations for nonlinear ordinary differential equations (ODEs) of any order including coupled ones from a knowledge of fewer number of…

Exactly Solvable and Integrable Systems · Physics 2012-01-26 V. K. Chandrasekar , M. Senthilvelan , M. Lakshmanan

The integrable nonlocal nonlinear Schrodinger (NNLS) equation with the self-induced parity-time-symmetric potential [Phys. Rev. Lett. 110 (2013) 064105] is investigated, which is an integrable extension of the standard NLS equation. Its…

Exactly Solvable and Integrable Systems · Physics 2017-04-19 Xiao-Yong Wen , Zhenya Yan , Yunqing Yang

Linearization of coupled second order nonlinear ordinary differential equations (SNODEs) is one of the open and challenging problems in the theory of differential equations. In this paper we describe a simple and straightforward method to…

Exactly Solvable and Integrable Systems · Physics 2015-05-13 V. K. Chandrasekar , M. Senthilvelan , M. Lakshmanan

In this paper, we obtain the Nth-order rational solutions for the defocusing nonlocal nonlinear Schrodinger equation by the Darboux transformation and some limit technique. Then, via an improved asymptotic analysis method relying on the…

Exactly Solvable and Integrable Systems · Physics 2021-11-17 Tao Xu , Lingling Li , Min Li , Chunxia Li , Xuefeng Zhang

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

The time-dependent one-dimensional nonlinear Schr\"odinger equation (NLSE) is solved numerically by a hybrid pseudospectral-variational quantum algorithm that connects a pseudospectral step for the Hamiltonian term with a variational step…

This paper focuses on the construction and analysis of explicit numerical methods of high dimensional stochastic nonlinear Schrodinger equations (SNLSEs). We first prove that the classical explicit numerical methods are unstable and suffer…

Numerical Analysis · Mathematics 2021-12-21 Jianbo Cui

We present different techniques to numerically solve the equations of motion for the widely studied Discrete Nonlinear Schroedinger equation (DNLS). Being a Hamiltonian system, the DNLS requires symplectic routines for an efficient…

Computational Physics · Physics 2013-04-08 Mario Mulansky

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 examine the non-relativistic stationary Schr\"odinger equation from a differential Galois-theoretic perspective. The main algorithmic tools are pullbacks of second order ordinary linear differential operators, so as to…

Quantum Physics · Physics 2010-12-08 Primitivo B. Acosta-Humánez , Juan J. Morales-Ruiz , Jacques-Arthur Weil

The second-type derivative nonlinear Schr\"odinger (DNLSII) equation was introduced as an integrable model in 1979. Very recently, the DNLSII equation has been shown by an experiment to be a model of the evolution of optical pulses…

Exactly Solvable and Integrable Systems · Physics 2015-04-14 Y. S. Zhang , L. J. Guo , J. S. He , Z. X. Zhou

Addition of higher nonlinear terms to the well known integrable nonlinear Schr\"odinger (NLS) equations, keeping the same linear dispersion (LD) usually makes the system nonintegrable. We present a systematic method through a novel…

Exactly Solvable and Integrable Systems · Physics 2008-04-24 Anjan Kundu

In this paper, we obtain a uniform Darboux transformation for multi-component coupled NLS equations, which can be reduced to all previous presented Darboux transformation. As a direct application, we derive the single dark soliton and…

Exactly Solvable and Integrable Systems · Physics 2013-09-05 Liming Ling , Li-Chen Zhao , Boling Guo

We derive generalized nonlinear wave solution formula for mixed coupled nonlinear Sch\"odinger equations (mCNLSE) by performing the unified Darboux transformation. We give the classification of the general soliton formula on the nonzero…

Exactly Solvable and Integrable Systems · Physics 2015-11-06 Liming Ling , Li-Chen Zhao , Boling Guo

In this paper the Singular Manifold Method has allowed us to obtain the Lax pair, Darboux transformations and tau functions for a non-linear Schr\"odiger equation in 2+1 dimensions. In this way we can iteratively build different kind of…

solv-int · Physics 2007-05-23 P. G. Estevez , G. A. Hernáez

This paper delves into the study of multi-component derivative nonlinear Schrodinger (n-DNLS) equations featuring nonzero boundary conditions. Employing the Darboux transformation (DT) method, we derive higher-order vector rogue wave…

Exactly Solvable and Integrable Systems · Physics 2023-12-20 Lin Huian , Ling Liming

We consider the generalized matrix non-linear Schrodinger (NLS) hierarchy. By employing the universal Darboux-dressing scheme we derive solutions for the hierarchy of integrable PDEs via solutions of the matrix Gelfand-Levitan-Marchenko…

Mathematical Physics · Physics 2019-03-08 Anastasia Doikou , Iain Findlay , Spyridoula Sklaveniti

We propose integrable discretizations of derivative nonlinear Schroedinger (DNLS) equations such as the Kaup-Newell equation, the Chen-Lee-Liu equation and the Gerdjikov-Ivanov equation by constructing Lax pairs. The discrete DNLS systems…

Exactly Solvable and Integrable Systems · Physics 2008-11-26 Takayuki Tsuchida

We further develop the method of dressing the boundary for the focusing nonlinear Schr\"odinger equation (NLS) on the half-line to include the new boundary condition presented by Zambon. Additionally, the foundation to compare the solutions…

Mathematical Physics · Physics 2020-08-10 K. T. Gruner

We present a generalized study and characterization of the integrability properties of the derivative non-linear Schr\"odinger equation in 1+1 dimensions. A Lax pair is derived for this equation by means of a Miura transformation and the…

Exactly Solvable and Integrable Systems · Physics 2021-02-25 Paz Albares , Pilar García Estévez , Juan Domingo Lejarreta