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On the basis of a recently-proposed method to find solitary solutions of generalized nonlinear Schrodinger equations [1]-[3], the existence of an envelope solitonlike solutions of a nonlinear Schrodinger equation containing an anti-cubic…

Pattern Formation and Solitons · Physics 2009-11-07 R. Fedele , H. Schamel , V. I. Karpman , P. K. Shukla

We consider soliton resolution for the Calogero--Moser derivative nonlinear Schr\"odinger equation (CM-DNLS). A rigorous PDE analysis of (CM-DNLS) was recently initiated by G\'erard and Lenzmann, who demonstrated its Lax pair structure.…

Analysis of PDEs · Mathematics 2026-01-22 Taegyu Kim , Soonsik Kwon

We find the N-soliton solution at infinite theta, as well as the metric on the moduli space corresponding to spatial displacements of the solitons. We use a perturbative expansion to incorporate the leading 1/theta corrections, and find an…

High Energy Physics - Theory · Physics 2010-02-03 L. Hadasz , U. Lindstrom , M. Rocek , R. von Unge

We study the scattering of solitons in the nonlinear Schroedinger equation on local inhomogeneities which may give rise to resonant transmission and reflection. In both cases, we derive resonance conditions for the soliton's velocity. The…

Soft Condensed Matter · Physics 2009-11-10 A. E. Miroshnichenko , S. Flach , B. Malomed

An explicit two-soliton solution for the derivative nonlinear Schr\"odinger equation with nonvanishing boundary conditions is derived, demonstrating details of interactions between two bright solitons, two dark solitons, as well as one…

Pattern Formation and Solitons · Physics 2009-11-11 Xiang-Jun Chen , Hui-Li Wang , Wa Kun Lam

A generalized inverse scattering method has been applied to the linear problem associated with the coupled higher order nonlinear schr\"odinger equation to obtain it's $N$-soliton solution. An infinite number of conserved quantities have…

Exactly Solvable and Integrable Systems · Physics 2019-06-14 Sudipta Nandy

This work deals with soliton solutions of the nonlinear Schroedinger equation with cubic and quintic nonlinearities. We extend the procedure put forward in a recent Letter and we solve the equation in the presence of linear background, and…

Quantum Physics · Physics 2009-02-25 A. T. Avelar , D. Bazeia , W. B. Cardoso

Under investigation in this paper is the fractional integrable and non-integrable discrete modified Korteweg-de Vries hierarchies. The linear dispersion relations, completeness relations, inverse scattering transform, and fractional soliton…

Exactly Solvable and Integrable Systems · Physics 2024-02-22 Qin-Ling Liu , Rui Guo , Ya-Hui Huang , Xin Li

We study the energy critical wave equation in 3 dimensions around a single soliton. We obtain energy boundedness (modulo unstable modes) for the linearised problem. We use this to construct scattering solutions in a neighbourhood of…

Analysis of PDEs · Mathematics 2024-03-22 Istvan Kadar

The non-topological, stationary and propagating, soliton solutions of the classical continuous Heisenberg ferromagnet equation are investigated. A general, rigorous formulation of the Inverse Scattering Transform for this equation is…

Mathematical Physics · Physics 2018-06-18 F. Demontis , S. Lombardo , M. Sommacal , C. van der Mee , F. Vargiu

We present four examples of integrable partial differential equations (PDEs) of mathematical physics that---when linearized around a stationary soliton---exhibit scattering without reflection at {\it all} energies. Starting from the most…

Quantum Gases · Physics 2015-02-17 Andrew Koller , Zaijong Hwang , Maxim Olshanii

In this paper we study the interaction of Gaussian solitons in a dispersive and nonlinear media with log-law nonlinearity. The model is described by the coupled logarithmic nonlinear Schr\"odinger equations, which is a nonintegrable system…

Pattern Formation and Solitons · Physics 2017-04-14 Rafael M. P. Teixeira , Wesley B. Cardoso

The existence of ``dispersion-managed solitons'', i.e., stable pulsating solitary-wave solutions to the nonlinear Schr\"{o}dinger equation with periodically modulated and sign-variable dispersion is now well known in nonlinear optics. Our…

Exactly Solvable and Integrable Systems · Physics 2009-11-07 Simon Clarke , Boris A. Malomed , Roger Grimshaw

We present here solutions of a non-linear Schroedinger equation in presence of an arbitrary linear external potential. The non-linearity expresses a self-focusing interaction. These solutions are the product of the pilot wave with peaked…

Quantum Physics · Physics 2022-12-14 Thomas Durt

We study the quantum mechanics of the derivative nonlinear Schrodinger equation which has appeared in many areas of physics and is known to be classically integrable. We find that the N-body quantum problem is exactly solvable with both…

Statistical Mechanics · Physics 2008-02-03 Diptiman Sen

In this paper we give a simple and short proof of asymptotic stability of soliton for discrete nonlinear Schr\"odinger equation near anti-continuous limit. Our novel insight is that the analysis of linearized operator, usually…

Analysis of PDEs · Mathematics 2021-12-03 Masaya Maeda , Masafumi Yoneda

We study the relations between solitons of nonlinear Schr\"{o}dinger equation described systems and eigen-states of linear Schr\"{o}dinger equation with some quantum wells. Many different non-degenerated solitons are re-derived from the…

Pattern Formation and Solitons · Physics 2019-02-20 Li-Chen Zhao , Zhan-Ying Yang , Wen-Li Yang

The study of noncommutative solitons is greatly facilitated if the field equations are integrable, i.e. result from a linear system. For the example of a modified but integrable U(n) sigma model in 2+1 dimensions we employ the dressing…

High Energy Physics - Theory · Physics 2010-02-03 Olaf Lechtenfeld , Alexander D. Popov

The use of the sine-Gordon equation as a model of magnetic flux propagation in Josephson junctions motivates studying the initial-value problem for this equation in the semiclassical limit in which the dispersion parameter $\e$ tends to…

Exactly Solvable and Integrable Systems · Physics 2007-05-23 Robert Buckingham Peter D. Miller

Continuous families of solitons in generalized nonlinear Sch\"odinger equations with non-PT-symmetric complex potentials are studied analytically. Under a weak assumption, it is shown that stationary equations for solitons admit a constant…

Pattern Formation and Solitons · Physics 2015-09-24 Sean Nixon , Jianke Yang