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From among the waves whose dynamics are governed by the nonlinear Schr\"odinger (NLS) equation, we find a robust, spatiotemporally disordered family, in which waves initialized with increasing amplitudes, on average, over long time scales,…

斑图形成与孤子 · 物理学 2021-07-05 Katelyn Plaisier Leisman , Douglas Zhou , J. W. Banks , Gregor Kovačič , David Cai

It is shown that the Schr\"{o}dinger nonrelativistic equation of a system of interacting particles is not a rigorously nonrelativistic equation since it is based on the implicit assumption of finiteness of the interaction propagation…

量子物理 · 物理学 2009-11-06 M. V. Kuzmenko

We are concerned with a class of nonlinear Schr\"{o}dinger-type equations with a reaction term and a differential operator that involves a variable exponent. By using related variational methods, we establish several existence results.

偏微分方程分析 · 数学 2019-09-30 Dušan D. Repovš

We describe and rigorously justify the nonlinear interaction of highly oscillatory waves in nonlinear Schrodinger equations, posed on Euclidean space or on the torus. Our scaling corresponds to a weakly nonlinear regime where the…

偏微分方程分析 · 数学 2010-04-22 Rémi Carles , Eric Dumas , Christof Sparber

We demonstrate that stabilization of solitons of the multidimensional Schrodinger equation with a cubic nonlinearity may be achieved by a suitable periodic control of the nonlinear term. The effect of this control is to stabilize the…

斑图形成与孤子 · 物理学 2009-11-10 Gaspar D. Montesinos , Victor M. Perez-Garcia , Pedro Torres

The question of well-posedness of the generalized focusing Ablowitz-Ladik and Discrete Nonlinear Schr\"{o}dinger equations with \textit{nonzero} boundary conditions on the infinite lattice is far less understood than in the case where the…

偏微分方程分析 · 数学 2026-03-25 Dirk Hennig , Nikos I. Karachalios , Dionyssios Mantzavinos , Dimitrios Mitsotakis

We investigate dynamical aspects of the discrete nonlinear Schr\"{o}dinger equation (DNLS) in finite lattices. Starting from a periodic chain with nearest neighbor interactions, we insert randomly links connecting distant pairs of sites…

无序系统与神经网络 · 物理学 2011-01-27 F. Perakis , G. P. Tsironis

We investigate the asymptotic behavior of solutions to semi-classical Schroedinger equations with nonlinearities of Hartree type. For a weakly nonlinear scaling, we show the validity of an asymptotic superposition principle for slowly…

偏微分方程分析 · 数学 2018-01-17 Johannes Giannoulis , Alexander Mielke , Christof Sparber

It is shown that the Schr\"{o}dinger equation for a system of interacting particles whose Compton wavelengths are of the same order of magnitude as the system size is contradictory and is not strictly nonrelativistic, because it is based on…

量子物理 · 物理学 2007-05-23 M. V. Kuzmenko

All stationary solutions to the one-dimensional nonlinear Schroedinger equation under box and periodic boundary conditions are presented in analytic form. We consider the case of repulsive nonlinearity; in a companion paper we treat the…

凝聚态物理 · 物理学 2009-10-31 Lincoln D. Carr , Charles W. Clark , William P. Reinhardt

Nonlinear modifications of quantum mechanics generically lead to nonlocal effects which violate relativistic causality. We study these effects using the functional Schrodinger equation for quantum fields and identify a type of nonlocality…

高能物理 - 理论 · 物理学 2015-06-18 Chiu Man Ho , Stephen D. H. Hsu

The problem of showing the existence of localised modes in nonlinear lattices has attracted considerable efforts from the physical but also from the mathematical viewpoint where a rich variety of methods has been employed. In this paper we…

偏微分方程分析 · 数学 2021-12-08 Dirk Hennig , Nikos I. Karachalios

The Schr\"odinger equation for quantum dot lattices with non-cubic, non-Bravais lattices built up from elliptical dots is investigated. The Coulomb interaction between the dots is considered in dipole approximation. Then only the center of…

介观与纳米尺度物理 · 物理学 2009-11-13 M. Taut

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…

We study a one-dimensional discrete nonlinear Schr\"odinger model with hopping to the first and a selected N-th neighbor, motivated by a helicoidal arrangement of lattice sites. We provide a detailed analysis of the modulational instability…

量子气体 · 物理学 2016-06-10 J. Stockhofe , P. Schmelcher

The existence of compactons in the discrete nonlinear Schr\"odinger equation in the presence of fast periodic time modulations of the nonlinearity is demonstrated. In the averaged DNLS equation the resulting effective inter-well tunneling…

斑图形成与孤子 · 物理学 2015-05-20 F. Kh. Abdullaev , P. G. Kevrekidis , M. Salerno

The Nonlinear Schroedinger Equation (NLSE) with a random potential is motivated by experiments in optics and in atom optics and is a paradigm for the competition between the randomness and nonlinearity. The analysis of the NLSE with a…

数学物理 · 物理学 2013-08-30 Shmuel Fishman , Yevgeny Krivolapov , Avy Soffer

We derive a universal model for atom pairs interacting with non-resonant light via the polarizability anisotropy, based on the long range properties of the scattering. The corresponding dynamics can be obtained using a nodal line technique…

A nonlinear Schr\"odinger equation for the envelope of two dimensional surface water waves on finite depth with non zero constant vorticity is derived, and the influence of this constant vorticity on the well known stability properties of…

流体动力学 · 物理学 2015-06-05 Roland Thomas , Christian Kharif , Miguel Manna

We consider a class of nonlinear Schrodinger equation in four and five space dimensions with an attractive potential. The nonlinearity is local but rather general encompassing for the first time both subcritical and supercritical (in L2)…

偏微分方程分析 · 数学 2009-06-22 E. Kirr , O. Mizrak