Result: Stationary problem related to the nonlinear Schrodinger equation on the unit ball
Laboratoire de Mathémathiques, Reims University, BP 1039, 51687 Reims, France
Department of Mathematics, Hokkaido University, Kita 10, Nishi 8, Kita-ku, Sapporo 060-0810, Japan
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Theoretical physics
Further Information
In this paper, we study the stability of standing waves for the nonlinear Schrödinger equation on the unit ball in ℝN with Dirichlet boundary condition. We generalize the result of Fibich and Merle (2001 Physica D 155 132―58), which proves the orbital stability of the least-energy solution with the cubic power nonlinearity in two space dimension. We also obtain several results concerning the excited states in one space dimension. Specifically, we show the linear stability of the first three excited states and we give a proof of the orbital stability of the kth excited state, restricting ourselves to the perturbation of the same symmetry as the kth excited state. Finally, our numerical simulations on the stability of the kth excited state are presented.