{
  "id": "1406.5770",
  "version": "v1",
  "published": "2014-06-22T21:38:24.000Z",
  "updated": "2014-06-22T21:38:24.000Z",
  "title": "Scattering theory and ground-state energy of Dirac fermions in graphene with two Coulomb impurities",
  "authors": [
    "D. Klöpfer",
    "A. De Martino",
    "D. Matrasulov",
    "R. Egger"
  ],
  "comment": "9 pages, 3 figures",
  "journal": "Eur. Phys. J. B 87, 187 (2014)",
  "doi": "10.1140/epjb/e2014-50414-8",
  "categories": [
    "cond-mat.mes-hall"
  ],
  "abstract": "We study the physics of Dirac fermions in a gapped graphene monolayer containing two Coulomb impurities. For the case of equal impurity charges, we discuss the ground-state energy using the linear combination of atomic orbitals (LCAO) approach. For opposite charges of the Coulomb centers, an electric dipole potential results at large distances. We provide a nonperturbative analysis of the corresponding low-energy scattering problem.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2014-06-22T21:38:24.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "dirac fermions",
      "ground-state energy",
      "coulomb impurities",
      "scattering theory",
      "electric dipole potential results"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "journal": "European Physical Journal B",
      "year": 2014,
      "month": "Aug",
      "volume": 87,
      "number": 8,
      "pages": 187
    },
    "note": {
      "typesetting": "TeX",
      "pages": 9,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "adsabs": "2014EPJB...87..187K"
    }
  }
}