1. Centre de Physique Théorique, Ecole Polytechnique, Plateau de Palaiseau, 91128 Palaiseau-Cedex, France (L.P. 14);2. Centre de Mathématiques Appliquées, Ecole Normale Supérieure, 45 rue d'' Ulm, 75005 Pans, France (E.R.A. n° 589 CNRS)
Abstract:
We derive a finite-dimensional model which describes the generation of solitons in the forced non-linear Schrödinger equation. Its qualitative behaviour is in good agreement with previous numerical computations.