{
  "id": "cond-mat/0603315",
  "version": "v3",
  "published": "2006-03-11T22:28:08.000Z",
  "updated": "2006-04-10T08:43:56.000Z",
  "title": "Quantum-limited shot noise in graphene",
  "authors": [
    "J. Tworzydlo",
    "B. Trauzettel",
    "M. Titov",
    "A. Rycerz",
    "C. W. J. Beenakker"
  ],
  "comment": "6 pages, 3 figures; added an appendix with details of the calculation",
  "journal": "Phys. Rev. Lett. 96, 246802 (2006).",
  "doi": "10.1103/PhysRevLett.96.246802",
  "categories": [
    "cond-mat.mes-hall"
  ],
  "abstract": "We calculate the mode-dependent transmission probability of massless Dirac fermions through an ideal strip of graphene (length L, width W, no impurities or defects), to obtain the conductance and shot noise as a function of Fermi energy. We find that the minimum conductivity of order e^2/h at the Dirac point (when the electron and hole excitations are degenerate) is associated with a maximum of the Fano factor (the ratio of noise power and mean current). For short and wide graphene strips the Fano factor at the Dirac point equals 1/3, three times smaller than for a Poisson process. This is the same value as for a disordered metal, which is remarkable since the classical dynamics of the Dirac fermions is ballistic.",
  "revisions": [
    {
      "version": "v3",
      "updated": "2006-04-10T08:43:56.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "quantum-limited shot noise",
      "fano factor",
      "wide graphene strips",
      "mode-dependent transmission probability",
      "dirac point equals"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "publisher": "APS",
      "journal": "Phys. Rev. Lett."
    },
    "note": {
      "typesetting": "TeX",
      "pages": 6,
      "language": "en",
      "license": "arXiv",
      "status": "editable"
    }
  }
}