Nonlinear Schrödinger equation on graphs: recent results and open problems

D Noja - Philosophical Transactions of the Royal Society …, 2014 - royalsocietypublishing.org
In this paper, an introduction to the new subject of nonlinear dispersive Hamiltonian
equations on graphs is given. The focus is on recently established properties of solutions in …

Fast solitons on star graphs

R Adami, C Cacciapuoti, D Finco… - Reviews in Mathematical …, 2011 - World Scientific
We define the Schrödinger equation with focusing, cubic nonlinearity on one-vertex graphs.
We prove global well-posedness in the energy domain and conservation laws for some self …

[图书][B] Introduction to nonlinear dispersive equations

F Linares, G Ponce - 2014 - books.google.com
This textbook introduces the well-posedness theory for initial-value problems of nonlinear,
dispersive partial differential equations, with special focus on two key models, the Korteweg …

Why are solitons stable?

T Tao - Bulletin of the American Mathematical Society, 2009 - ams.org
The theory of linear dispersive equations predicts that waves should spread out and
disperse over time. However, it is a remarkable phenomenon, observed both in theory and …

Sagnac interferometry using bright matter-wave solitons

JL Helm, SL Cornish, SA Gardiner - Physical review letters, 2015 - APS
We use an effective one-dimensional Gross-Pitaevskii equation to study bright matter-wave
solitons held in a tightly confining toroidal trapping potential, in a rotating frame of reference …

Nonlinear Schrödinger equation with a point defect

R Fukuizumi, M Ohta, T Ozawa - Annales de l'Institut Henri Poincaré C …, 2008 - Elsevier
We study the nonlinear Schrödinger equation with a delta-function impurity in one space
dimension. Local well-posedness is verified for the Cauchy problem in H1 (R). In case of …

Instability of bound states of a nonlinear Schrödinger equation with a Dirac potential

S Le Coz, R Fukuizumi, G Fibich, B Ksherim… - Physica D: Nonlinear …, 2008 - Elsevier
We study analytically and numerically the stability of the standing waves for a nonlinear
Schrödinger equation with a point defect and a power type nonlinearity. A major difficulty is …

Effective integrable dynamics for a certain nonlinear wave equation

P Gérard, S Grellier - Anal. PDE, 2012 - msp.org
Effective integrable dynamics for a certain nonlinear wave equation Page 255 ANALYSIS AND
PDE Vol. 5, No. 5, 2012 dx. doi. org/10.2140/apde. 2012.5. 1139 msp EFFECTIVE INTEGRABLE …

On stability and instability of standing waves for 2d-nonlinear Schrödinger equations with point interaction

N Fukaya, V Georgiev, M Ikeda - Journal of Differential Equations, 2022 - Elsevier
We study existence and stability properties of ground-state standing waves for two-
dimensional nonlinear Schrödinger equation with a point interaction and a focusing power …

Soliton-based matter-wave interferometer

J Polo, V Ahufinger - Physical Review A—Atomic, Molecular, and Optical …, 2013 - APS
We consider a matter-wave bright soliton interferometer composed of a harmonic potential
trap with a Rosen-Morse barrier at its center on which an incident soliton collides and splits …