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This paper investigates a reverse space-time higher-order modified self-steepening nonlinear Schr\"odinger equation, which distinguishes its standard local counterparts through the reverse space-time symmetry. The integrability of this…

Exactly Solvable and Integrable Systems · Physics 2025-11-11 Yanan Wang , Xi-hu Wu

In this paper, we construct a generalized Darboux transformation for nonlinear Schr\"odinger equation. The associated $N$-fold Darboux transformation is given both in terms of a summation formula and in terms of determinants. As…

Exactly Solvable and Integrable Systems · Physics 2015-05-30 Boling Guo , Liming Ling , Q. P. Liu

The discrete Schr\"odinger equation on a half-line lattice with the Dirichlet boundary condition is considered when the potential is real valued, is summable, and has a finite first moment. The Darboux transformation formulas are derived…

Mathematical Physics · Physics 2020-05-04 Tuncay Aktosun , Abdon E. Choque-Rivero , Vassilis Papanicolaou

In this paper, the determinant representation of the n-fold Darboux transformation (DT) of the Kundu-DNLS equation is given. Based on our analysis, the soliton solutions, positon solutions and breather solutions of the Kundu-DNLS equation…

Mathematical Physics · Physics 2015-06-15 Shibao Shan , Chuanzhong Li , Jingsong He

We construct the generalized Darboux transformation with arbitrary functions in time $t$ for the AKNS equation with self-consistent sources (AKNSESCS) which, in contrast with the Darboux transformation for the AKNS equation, provides a…

Exactly Solvable and Integrable Systems · Physics 2009-11-10 Yijun Shao , Yunbo Zeng

The Sasa-Satsuma equation, a higher-order nonlinear Schr\"{o}dinger equation, is an important integrable equation, which displays the propagation of femtosecond pulses in optical fibers. In this paper, we investigate a generalized…

Exactly Solvable and Integrable Systems · Physics 2023-06-07 Hong-Qian Sun , Zuo-Nong Zhu

We derive an exact solution to the local nonlinear Schr\"odinger equation (NLSE) using the Darboux transformation method. The new solution describes the profile and dynamics of a two-soliton molecule. Using an algebraically-decaying seed…

Pattern Formation and Solitons · Physics 2020-06-17 Khelifa Mohammed Elhadj , L. Al Sakkaf , U. Al Khawaja , Abdelaali Boudjemaa

The Sasa-Satsuma equation is an integrable higher-order nonlinear Schr\"odinger equation. Higher-order and multicomponent generalisations of the nonlinear Schr\"odinger equation are important in various applications, e.g., in optics. One of…

Exactly Solvable and Integrable Systems · Physics 2015-12-22 Jonathan J. C. Nimmo , Halis Yilmaz

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

In this paper, we primarily construct Darboux transformation(DT) of the nonlocal coupled modified complex integrable dispersionless (cm-CID) equation, which is first proposed by the connection with a nonlocal coupled modified complex short…

Exactly Solvable and Integrable Systems · Physics 2025-10-16 Hong-Qian Sun , Shou-Feng Shen , Zuo-Nong Zhu

A new form of a binary Darboux transformation is used to generate analytical solutions of a nonlinear Liouville-von Neumann equation. General theory is illustrated by explicit examples.

Quantum Physics · Physics 2009-10-31 Sergei B. Leble , Marek Czachor

The Myrzakulov-Lakshmanan-II (ML-II) equation is one of a (2+1)-dimensional generalizations of the Heisenberg ferromagnetic equation. It is integrable and has a non-isospectral Lax representation. In this paper, the Darboux transformation…

Exactly Solvable and Integrable Systems · Physics 2014-05-01 M. Zhassybayeva , G. Mamyrbekova , G. Nugmanova , R. Myrzakulov

NonlinearSchrodinger.jl is a Julia package with a simple interface for studying solutions of nonlinear Schr\"odinger equations (NLSEs). In approximately ten lines of code, one can perform a simulation of the cubic NLSE using one of 32…

Computational Physics · Physics 2021-03-29 Omar A. Ashour

Integrable discretisations for a class of coupled (super) nonlinear Schrodinger (NLS) type of equations are presented. The class corresponds to a Lax operator with entries in a Grassmann algebra. Elementary Darboux transformations are…

Exactly Solvable and Integrable Systems · Physics 2014-05-27 Georgi G. Grahovski , Alexander V. Mikhailov

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 Darboux transformations associated with the focusing nonlinear Schr\"odinger equation (NLS_-) and their effect on spectral properties of the underlying Lax operator. The latter is a formally J-self-adjoint (but non-self-adjoint)…

Exactly Solvable and Integrable Systems · Physics 2007-05-23 Radu C. Cascaval , Fritz Gesztesy , Helge Holden , Yuri Latushkin

In the present investigation, the solutions on the periodic and double-periodic background are successfully constructed by Darboux transformation using a plane wave seed solution. Firstly, the Darboux transformation for the…

Exactly Solvable and Integrable Systems · Physics 2021-11-30 H. J. Zhou , Y. Chen

In this paper, we construct a Darboux transformation (DT) of the (2+1)-dimensional Schr\"odinger-Maxwell-Bloch equation (SMBE) which is integrable by the Inverse Scattering Method. Using this DT, the one-soliton solution and periodic…

Exactly Solvable and Integrable Systems · Physics 2014-02-20 G. Shaikhova , K. Yesmakhanova , G. Mamyrbekova , R. Myrzakulov

For the nonlocal Davey-Stewartson I equation, the Darboux transformation is considered and explicit expressions of the solutions are obtained. Like the nonlocal equations in 1+1 dimensions, many solutions may have singularities. However, by…

Exactly Solvable and Integrable Systems · Physics 2018-08-09 Zi-Xiang Zhou

In this paper we implement the Darboux transformation, as well as an analogue of Crum's theorem, for a discrete version of Schr\"odinger equation. The technique is based on the use of first order operators intertwining two difference…

Dynamical Systems · Mathematics 2018-07-19 Alina Dobrogowska , David J. Fernández C