{ "id": "1512.00310", "version": "v1", "published": "2015-12-01T15:52:07.000Z", "updated": "2015-12-01T15:52:07.000Z", "title": "Anelastic Approximation of the Gross-Pitaevskii equation for General Initial Data", "authors": [ "Chi-Kun Lin", "Kung-Chien Wu" ], "categories": [ "math.AP", "math-ph", "math.MP" ], "abstract": "We perform a rigorous analysis of the anelastic approximation for the Gross-Pitaevskii equation with $x$-dependent chemical potential. For general initial data and periodic boundary condition, we show that as $\\eps\\to 0$, equivalently the Planck constant tends to zero, the density $|\\psi^{\\eps}|^{2}$ converges toward the chemical potential $\\rho_{0}(x)$ and the velocity field converges to the anelastic system. When the chemical potential is a constant, the anelastic system will reduce to the incompressible Euler equations. The resonant effects the singular limit process and it can be overcome because of oscillation-cancelation.", "revisions": [ { "version": "v1", "updated": "2015-12-01T15:52:07.000Z" } ], "analyses": { "keywords": [ "general initial data", "anelastic approximation", "gross-pitaevskii equation", "chemical potential", "anelastic system" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable" } } }