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We implement the Numerical Unified Transform Method to solve the Nonlinear Schr\"odinger equation on the half-line. For so-called linearizable boundary conditions, the method solves the half-line problems with comparable complexity as the…

Numerical Analysis · Mathematics 2021-06-28 Xin Yang , Bernard Deconinck , Thomas Trogdon

We propose a new approach that allows one to reduce nonlinear equations on Lie groups to equations with a fewer number of independent variables for finding particular solutions of the nonlinear equations. The main idea is to apply the…

Mathematical Physics · Physics 2022-08-17 A. I. Breev , A. V. Shapovalov , D. M. Gitman

We investigate the presence of localized analytical solutions of the Schr\"odinger equation with logarithm nonlinearity. After including inhomogeneities in the linear and nonlinear coefficients, we use similarity transformation to convert…

Pattern Formation and Solitons · Physics 2014-04-29 L. Calaça , A. T. Avelar , D. Bazeia , W. B. Cardoso

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 a nonlinear Schrodinger equation with power nonlinearity, either on a compact manifold without boundary, or on the whole space in the presence of harmonic confinement, in space dimension one and two. Up to introducing an extra…

Analysis of PDEs · Mathematics 2020-12-16 Rémi Carles , Tohru Ozawa

The nonlinear fractional Boussinesq equations are known as the fractional differential equation class that has an important place in mathematical physics. In this study, a method called (G'G^2)-extension method which works well and reveals…

Analysis of PDEs · Mathematics 2021-04-30 Erdogan Mehmet Ozkan

We prove a global well-posedness result for defocusing nonlinear Schrodinger equations with time dependent potential. We then focus on time dependent harmonic potentials. This aspect is motivated by Physics (Bose--Einstein condensation),…

Analysis of PDEs · Mathematics 2011-09-22 Rémi Carles

A one-dimensional generalized nonlinear Schroedinger equation is considered, and the corresponding inverse scattering problem is analyzed when the potential is compactly supported and depends on the wave function. The unique recovery of the…

Mathematical Physics · Physics 2007-05-23 Tuncay Aktosun , Vassilis G. Papanicolaou , Vassilis Zisis

By using the point canonical transformation approach in a manner distinct from previous ones, we generate some new exactly solvable or quasi-exactly solvable potentials for the one-dimensional Schr\"odinger equation with a…

Quantum Physics · Physics 2009-11-11 B. Bagchi , P. Gorain , C. Quesne , R. Roychoudhury

In this paper, we establish various maximal principles and develop the direct moving planes and sliding methods for equations involving the physically interesting (nonlocal) pseudo-relativistic Schr\"{o}dinger operators…

Analysis of PDEs · Mathematics 2020-04-07 Wei Dai , Guolin Qin , Dan Wu

A new non-perturbative method of solution of the nonlinear Heisenberg equations in the finite-dimensional subspace is illustrated. The method, being a counterpart of the traditional Schrodinger picture method, is based on a finite operator…

Quantum Physics · Physics 2016-09-08 L. Mista , R. Filip

With the consideration of spherical symmetry for the potential and mass function, one-dimensional solutions of non-relativistic Schrodinger equations with spatially varying effective mass are successfully extended to arbitrary dimensions…

Quantum Physics · Physics 2008-11-26 B. Gonul , M. Kocak

This paper gives a new perspective on how to solve the second-order linear differential equation written in normal form. Extending the argument of the potential to a complex number leads to solving exactly the Schr\"odinger equation when…

Quantum Physics · Physics 2023-01-12 Jamal Benbourenane

In this paper, we provide a simple method to generate higher order position solutions and rogue wave solutions for the derivative nonlinear Schr\"odinger equation. The formulae of these higher order solutions are given in terms of…

Exactly Solvable and Integrable Systems · Physics 2013-04-10 Yongshuai Zhang , Lijuan Guo , Shuwei Xu , Zhiwei Wu , Jingsong HE

We construct time quasi-periodic solutions to the energy supercritical nonlinear Schr\"odinger equations on the torus in arbitrary dimensions. This introduces a new approach, which could have general applicability.

Analysis of PDEs · Mathematics 2016-06-08 W. -M. Wang

We show that the two-dimensional, nonlinear Schr\"odinger lattice with a saturable nonlinearity admits periodic and pulse-like exact solutions. We establish the general formalism for the stability considerations of these solutions and give…

Exactly Solvable and Integrable Systems · Physics 2010-08-30 Avinash Khare , Kim Ø. Rasmussen , Mogens R. Samuelsen , Avadh Saxena

This paper is concerned with the numerical analysis of linear and nonlinear Schr{\"o}dinger equations with analytic potentials. While the regularity of the potential (and the source term when there is one) automatically conveys to the…

Numerical Analysis · Mathematics 2023-12-21 Eric Cancès , Gaspard Kemlin , Antoine Levitt

We consider the nonlinear Schr\"odinger equation with periodic dispersion management. We first establish global-in-time Strichartz estimates for the underlying linear equation with suitable dispersion maps. As an application, we establish a…

Analysis of PDEs · Mathematics 2023-05-11 Jason Murphy , Tim Van Hoose

Necessary and sufficient conditions for existence of bounded on the entire real axis solutions of Schrodinger equation are obtained under assumption that the homogeneous equation admits an exponential dichotomy on the semi-axes. Bounded…

Dynamical Systems · Mathematics 2012-09-04 A. A. Pokutnyi

Solutions of semi-classical Schrodinger equation with isotropic harmonic potential focus periodically in time. We study the perturbation of this equation by a nonlinear term. If the scaling of this perturbation is critical, each focus…

Analysis of PDEs · Mathematics 2016-08-14 Rémi Carles