{ "id": "1712.03925", "version": "v1", "published": "2017-12-11T18:11:32.000Z", "updated": "2017-12-11T18:11:32.000Z", "title": "Level spacing for continuum random Schrödinger operators with applications", "authors": [ "Adrian Dietlein", "Alexander Elgart" ], "comment": "35 pages; comments welcome", "categories": [ "math-ph", "math.MP", "math.SP" ], "abstract": "For continuum alloy-type random Schr\\\"odinger operators with sign-definite single-site bump functions and absolutely continuous single-site randomness we prove a probabilistic level-spacing estimate at the bottom of the spectrum. More precisely, given a finite-volume restriction of the random operator onto a box of linear size $L$, we prove that with high probability the eigenvalues below some threshold energy keep a distance of at least $e^{-(\\log L)^\\beta}$ for sufficiently large $\\beta>1$. This implies simplicity of the spectrum of the infinite-volume operator below the threshold energy. Under the additional assumption of Lipschitz-continuity of the single-site probability density we also prove a Minami-type estimate and Poisson statistics for the point process given by the unfolded eigenvalues around a reference energy $E$.", "revisions": [ { "version": "v1", "updated": "2017-12-11T18:11:32.000Z" } ], "analyses": { "keywords": [ "continuum random schrödinger operators", "level spacing", "threshold energy", "sign-definite single-site bump functions", "applications" ], "note": { "typesetting": "TeX", "pages": 35, "language": "en", "license": "arXiv", "status": "editable" } } }