{ "id": "2110.05277", "version": "v3", "published": "2021-10-11T13:49:01.000Z", "updated": "2024-01-28T09:00:41.000Z", "title": "On the energy-critical quadratic nonlinear Schrödinger system with three waves", "authors": [ "Fanfei Meng", "Sheng Wang", "Chengbin Xu" ], "comment": "In this version, we correct some mistakes, add some chapters and change the title", "categories": [ "math.AP" ], "abstract": "In this article, we consider the dynamics of the energy-critical quadratic nonlinear Schr\\\"odinger system $\\[ \\left\\{ \\begin{aligned} & i u^1_t + \\kappa_1 \\Delta u^1 = -\\overline{u^2}u^3, \\\\ & i u^2_t + \\kappa_2 \\Delta u^2 = -\\overline{u^1}u^3, \\\\ & i u^3_t + \\kappa_3 \\Delta u^3 = -u^1u^2, \\\\ \\end{aligned} \\right. \\qquad (t, x) \\in \\R \\times \\R^6 \\] in energy-space $ {\\dot H}^1 \\times {\\dot H}^1\\times{\\dot H}^1 $, where the sign of potential energy can not be determined. We prove the scattering theory with mass-resonance (or with radial initial data) below ground state via concentration compactness method. We discover a family of new physically conserved quantities with mass-resonance which play an important role in the proof of scattering.", "revisions": [ { "version": "v3", "updated": "2024-01-28T09:00:41.000Z" } ], "analyses": { "keywords": [ "energy-critical quadratic nonlinear schrödinger system", "concentration compactness method", "radial initial data", "mass-resonance", "potential energy" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable" } } }