Abstract
We study the continuous resonant (CR) equation which was derived in [8] as the large-box limit of the cubic nonlinear Schrödinger equation in the small nonlinearity (or small data) regime. We first show that the system arises in another natural way, as it also corresponds to the resonant cubic Hermite-Schrödinger equation (NLS with harmonic trapping). We then establish that the basis of special Hermite functions is well suited to its analysis, and uncover more of the striking structure of the equation. We study in particular the dynamics on a few invariant subspaces: eigenspaces of the harmonic oscillator, of the rotation operator, and the Bargmann-Fock space. We focus on stationary waves and their stability.
Original language | English (US) |
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Pages (from-to) | 131-163 |
Number of pages | 33 |
Journal | Journal des Mathematiques Pures et Appliquees |
Volume | 105 |
Issue number | 1 |
DOIs | |
State | Published - 2016 |
Keywords
- Harmonic oscillator
- Lowest landau level
- Nonlinear schrödinger equation
- Resonant equation
- Stationary solutions
ASJC Scopus subject areas
- General Mathematics
- Applied Mathematics