{
  "id": "1305.5952",
  "version": "v3",
  "published": "2013-05-25T17:53:15.000Z",
  "updated": "2013-12-27T17:03:20.000Z",
  "title": "Quantum ergodicity for a point scatterer on the three-dimensional torus",
  "authors": [
    "Nadav Yesha"
  ],
  "comment": "Revised according to referee's comments. Accepted for publication in Annales Henri Poincare",
  "categories": [
    "math.AP",
    "math-ph",
    "math.MP",
    "math.NT",
    "nlin.CD"
  ],
  "abstract": "Consider a point scatterer (the Laplacian perturbed by a delta-potential) on the standard three-dimensional flat torus. Together with the eigenfunctions of the Laplacian which vanish at the point, this operator has a set of new, perturbed eigenfunctions. In a recent paper, the author was able to show that all of the perturbed eigenfunctions are uniformly distributed in configuration space. In this paper we prove that almost all of these eigenfunctions are uniformly distributed in phase space, i.e. we prove quantum ergodicity for the subspace of the perturbed eigenfunctions. An analogue result for a point scatterer on the two-dimensional torus was recently proved by Kurlberg and Uebersch\\\"ar.",
  "revisions": [
    {
      "version": "v3",
      "updated": "2013-12-27T17:03:20.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "point scatterer",
      "quantum ergodicity",
      "three-dimensional torus",
      "perturbed eigenfunctions",
      "standard three-dimensional flat torus"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 0,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "adsabs": "2013arXiv1305.5952Y"
    }
  }
}