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A method to find exact solutions to nonlinear Schr\"odinger equation, defined on a line and on a plane, is found by connecting it with second order linear ordinary differential equation. The connection is essentially made using Riccati…

Exactly Solvable and Integrable Systems · Physics 2014-11-14 Vivek M. Vyas , Rama Gupta , C. N. Kumar , Prasanta K. Panigrahi

In this paper, we intend to present some already known results about the internal controllability of the linear and nonlinear Schr\"odinger equation. After presenting the basic properties of the equation, we give a self contained proof of…

Analysis of PDEs · Mathematics 2013-07-09 Camille Laurent

We give a complete description of nontrivial local conservation laws of all orders for a natural generalization of the nonlinear progressive wave equation and, in particular, show that there is an infinite number of such conservation laws.

Analysis of PDEs · Mathematics 2023-05-19 A. Sergyeyev

We show that a nonlinear Schr\"odinger wave equation can reproduce all the features of linear quantum mechanics. This nonlinear wave equation is obtained by exploring, in a uniform language, the transition from fully classical theory…

Quantum Physics · Physics 2014-03-20 Chris D. Richardson , Peter Schlagheck , John Martin , Nicolas Vandewalle , Thierry Bastin

We prove global well-posedness for the cubic nonlinear Schr\"odinger equation with nonlinearity concentrated on a homogeneous Poisson process.

Analysis of PDEs · Mathematics 2025-09-11 Benjamin Harrop-Griffiths , Rowan Killip , Monica Visan

We prove the existence of non-trivial solutions to a system of coupled, nonlinear, Schroedinger equations with general nonlinearity.

Analysis of PDEs · Mathematics 2009-10-01 A. Pomponio , S. Secchi

In this article, we consider the nonlinear Schr\"odinger equation on the cylinder $\mathbb{R}^d\times \mathbb{T}$. In the long range case, we show there is no linear scattering state of the nonlinear Schr\"odinger equation on $\mathbb{R}^d…

Analysis of PDEs · Mathematics 2024-05-17 Xing Cheng , Jiqiang Zheng

We consider the 3-dimensional nonlinear Schr\"{o}dinger equation (NLS) with average nonlinearity. This is a limiting model of NLS with strong magnetic confinement and a generalized model of the resonant system of NLS with a partial harmonic…

Analysis of PDEs · Mathematics 2024-11-07 Jumpei Kawakami

For the first time, the general nonlinear Schr\"odinger equation is investigated, in which the chromatic dispersion and potential are specified by two arbitrary functions. The equation in question is a natural generalization of a wide class…

Exactly Solvable and Integrable Systems · Physics 2024-12-03 Andrei D. Polyanin , Nikolay A. Kudryashov

The initial-boundary value problem in a bounded domain with moving boundaries and nonhomogeneous boundary conditions for a higher order nonlinear Schr\"odinger (HNLS) equation is considered. Existence and uniqueness of global weak solutions…

We review some recent results concerning the Initial Value Problem of 1d-cubic non-linear Schr\"odinger equation (NLS) and other related systems as the Schr\"odinger Map. For the latter we prove the existence of a cascade of energy.…

Analysis of PDEs · Mathematics 2023-03-16 Valeria Banica , Luis Vega

In this paper, we study the schrodinger equation and wave equation with the Dirichlet boundary condition on a connected finite graph. The explicit expressions for solutions are given and the energy conservations are derived. Applications to…

Analysis of PDEs · Mathematics 2012-07-24 Li Ma , X. Y. Wang

We consider construction of ansatzes for nonlinear Schrodinger equations in three space dimensions and arbitrary nonlinearity, and conditions of their reduction to ordinary differential equations. Complete description of ansatzes of certain…

Mathematical Physics · Physics 2014-12-08 Irina Yehorchenko

General features of nonlinear quantum mechanics are discussed in the context of applications to two-level atoms.

Quantum Physics · Physics 2009-10-28 Marek Czachor

We study a system of nonlinear Schr\"odinger equations with cubic interactions in one space dimension. The orbital stability and instability of semitrivial standing wave solutions are studied for both non-degenerate and degenerate cases.

Analysis of PDEs · Mathematics 2016-02-04 Shotaro Kawahara , Masahito Ohta

On the basis of analytical results, we present a numerical example that indicates inconsistency of a widely used ansatz with cubically nonlinear Schr\"odinger equation.

Mathematical Physics · Physics 2025-02-27 Hans Werner Schuermann , Valery Serov

Conservation laws are computed for various nonlinear partial differential equations that arise in elasticity and acoustics. Using a scaling homogeneity approach, conservation laws are established for two models describing shear wave…

Analysis of PDEs · Mathematics 2025-12-31 Willy Hereman , Rehana Naz

We consider an extension of the methodology of the modified method of simplest equation to the case of use of two simplest equations. The extended methodology is applied for obtaining exact solutions of model nonlinear partial differential…

Exactly Solvable and Integrable Systems · Physics 2018-01-23 Nikolay K. Vitanov , Zlatinka I. Dimitrova

In this paper we study a mixed problem for the nonlinear Schr\"odinger equation globally that have a nonlinear adding, in which the coefficient is a generalized function. Here is proved a global solvability theorem of the considered problem…

Mathematical Physics · Physics 2012-11-16 Kamal N. Soltanov

This paper is devoted to the well-posedness of stochastic nonlinear Schr\"odinger equations in the energy space H1(Rd), which is a natural continuation of our recent work [1]. We consider both focusing and defocusing nonlinearities and…

Probability · Mathematics 2014-04-22 Viorel Barbu , Michael Röckner , Deng Zhang