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In this article we study the one-dimensional, asymptotically linear, non-linear Schr\"odinger equation (NLS). We show the existence of a global smooth curve of standing waves for this problem, and we prove that these standing waves are…

Analysis of PDEs · Mathematics 2013-05-29 François Genoud

In this paper, we study normalized solutions to the Chern-Simons-Schr\"odinger system, which is a gauge-covariant nonlinear Sch\"oridnger system with a long-range electromagnetic field, arising in nonrelativistic quantum mechanics theory.…

Analysis of PDEs · Mathematics 2020-12-21 Tianxiang Gou , Zhitao Zhang

In this paper, we prove a multiplicity result of solutions for the following stationary Schr\"odinger-Poisson-Slater equations \begin{equation}\label{eq-abstract} -\Delta u - \lambda u + (\left | x \right |^{-1}\ast \left | u \right |^2) u…

Analysis of PDEs · Mathematics 2013-10-28 Tingjian Luo

We prove the existence of global analytic solutions to the nonlinear Schr\"odinger equation in one dimension for a certain type of analytic initial data in $L^2$.

Analysis of PDEs · Mathematics 2019-08-06 Daniel Oliveira da Silva , Magzhan Biyar

We continue our series devoted, after references \cite{CM24D1} and \cite{CM243}, at proving the asymptotic stability of ground states of the pure power Nonlinear Schr\"odinger equation on the line. Here we assume some results on the…

Analysis of PDEs · Mathematics 2024-10-03 Scipio Cuccagna , Masaya Maeda

We establish soliton-like asymptotics for finite energy solutions to the Schr\"odinger equation coupled to a nonrelativistic classical particle. Any solution with initial state close to the solitary manifold, converges to a sum of traveling…

Analysis of PDEs · Mathematics 2009-11-11 Alexander Komech , Elena Kopylova

We consider a version of the stationary phase method in one dimension of A. Erd\'elyi, allowing the phase to have stationary points of non-integer order and the amplitude to have integrable singularities. We provide a complete proof and we…

Analysis of PDEs · Mathematics 2014-12-19 F. Ali Mehmeti , F. Dewez

We show that, after a renormalisation, one can define the square of the modulus of the solution of the fractional Schr\"odinger equations on the circle with data in Sobolev spaces of arbitrary negative index. As an application, we obtain…

Analysis of PDEs · Mathematics 2025-02-19 Paul Alphonse , Nikolay Tzvetkov

The normalization of scattering states is more than a rote step necessary to calculate expectation values. This normalization actually contains important information regarding the density of the scattering spectrum (along with useful…

Quantum Physics · Physics 2025-05-27 Chris L. Lin

We generalize a finite parity-time (${\cal PT}$-) symmetric network of the discrete nonlinear Schr\"odinger type and obtain general results on linear stability of the zero equilibrium, on the nonlinear dynamics of the dimer model, as well…

Pattern Formation and Solitons · Physics 2014-02-14 Dmitry E. Pelinovsky , Dmitry A. Zezyulin , Vladimir V. Konotop

We extend the well-known trace formula for Hill's equation to general one-dimensional Schr\"odinger operators. The new function $\xi$, which we introduce, is used to study absolutely continuous spectrum and inverse problems.

Spectral Theory · Mathematics 2008-02-03 Fritz Gesztesy , Helge Holden , Barry Simon , Zhong Xin Zhao

Using Lie group theory we construct explicit solitary wave solutions of coupled nonlinear Schrodinger systems with spatially inhomogeneous nonlinearities. We present the general theory, use it to construct different families of explicit…

Pattern Formation and Solitons · Physics 2015-05-18 Juan Belmonte-Beitia , Valeriy Brazhnyi , Victor M. Perez-Garcia

We study the local behavior of solutions of the stationary Schr\" od\-inger equation with singular potentials, establishing a local decomposition into a homogeneous harmonic polynomial and a lower order term. Combining a corollary to this…

Analysis of PDEs · Mathematics 2014-09-01 Abel Klein , C. S. Sidney Tsang

In this short note, we propose to extend differentiability (with respect to a multidimensional parameter) of a normalized eigenfunction associated to the simple, dominating eigenvalue of the weighted transfer operator for a uniformly…

Dynamical Systems · Mathematics 2018-10-12 Julien Sedro

On the contrary to the common intuition, which suggests that a steep expulsive potential makes quantum states widely delocalized, we demonstrate that one- and two-dimensional (1D and 2D) Schroedinger equations, which include expulsive…

Quantum Physics · Physics 2026-04-28 H. Sakaguchi , B. A. Malomed , A. C. Aristotelous , E. G. Charalampidis

We present an analysis of the stability spectrum of all stationary elliptic-type solutions to the focusing Nonlinear Schr\"{o}dinger equation (NLS). An analytical expression for the spectrum is given. From this expression, various…

Exactly Solvable and Integrable Systems · Physics 2017-03-08 Bernard Deconinck , Benjamin L. Segal

We review asymptotic stability of solitary waves for nonlinear dispersive equations set on the line. Our focus is threefold: first, the nonlinear Schrodinger equation; second, the notion of full asymptotic stability (which states that…

Analysis of PDEs · Mathematics 2024-10-08 Pierre Germain

We discuss a new approach to solve the low lying states of the Schroedinger equation. For a fairly large class of problems, this new approach leads to convergent iterative solutions, in contrast to perturbative series expansions. These…

Quantum Physics · Physics 2009-11-10 R. Friedberg , T. D. Lee

The Nonstationary Schr\"{o}dinger equation with potential being a perturbation of a generic one-dimensional potential by means of a decaying two-dimensional function is considered here in the framework of the extended resolvent approach.…

Exactly Solvable and Integrable Systems · Physics 2007-05-23 M. Boiti , F. Pempinelli , A. K. Pogrebkov , B. Prinari

A covariant non-local extention if the stationary Schr\"odinger equation is presented and it's solution in terms of Heisenbergs's matrix quantum mechanics is proposed. For the special case of the Riesz fractional derivative, the calculation…

General Physics · Physics 2018-05-09 Richard Herrmann
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