{
  "id": "cond-mat/0412600",
  "version": "v1",
  "published": "2004-12-22T00:25:32.000Z",
  "updated": "2004-12-22T00:25:32.000Z",
  "title": "Confined free-electrons in an applied electric field: Discontinuous electron density",
  "authors": [
    "Stephane Pleutin"
  ],
  "comment": "25 pages, 9 figures",
  "categories": [
    "cond-mat.mes-hall",
    "cond-mat.mtrl-sci"
  ],
  "abstract": "We consider free electrons in rectangular quantum dots, with either hard wall boundary conditions or anharmonic confinement. In both cases, due to finite size effects, a homogeneous electric field applied along one of the rectangular axis is shown to induce abrupt changes in the electron density, parallel and perpendicularly to the field direction: the electron density jumps from one configuration to another. Making use of this property, we propose a purely electrical mechanism to control the magnitude of the effective exchange coupling between two quantum dots. This system has been proposed recently as a quantum gate for quantum computation.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2004-12-22T00:25:32.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "applied electric field",
      "discontinuous electron density",
      "confined free-electrons",
      "hard wall boundary conditions",
      "rectangular quantum dots"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 25,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "adsabs": "2004cond.mat.12600P"
    }
  }
}