{
  "id": "1102.2129",
  "version": "v3",
  "published": "2011-02-10T14:33:07.000Z",
  "updated": "2011-06-25T12:10:10.000Z",
  "title": "Armchair graphene nanoribbons: PT-symmetry breaking and exceptional points without dissipation",
  "authors": [
    "Maurizio Fagotti",
    "Claudio Bonati",
    "Demetrio Logoteta",
    "Paolo Marconcini",
    "Massimo Macucci"
  ],
  "comment": "5 pages, 2 eps figures",
  "journal": "Phys. Rev. B 83, 241406(R) (2011)",
  "doi": "10.1103/PhysRevB.83.241406",
  "categories": [
    "cond-mat.mes-hall",
    "math-ph",
    "math.MP",
    "quant-ph"
  ],
  "abstract": "We consider a single layer graphene nanoribbon with armchair edges in a longitudinally constant external potential and point out that its transport properties can be described by means of an effective non-Hermitian Hamiltonian. We show that this system has some features typical of dissipative systems, namely the presence of exceptional points and of PT-symmetry breaking, although it is not dissipative.",
  "revisions": [
    {
      "version": "v3",
      "updated": "2011-06-25T12:10:10.000Z"
    }
  ],
  "analyses": {
    "subjects": [
      "72.80.Vp",
      "03.65.-w",
      "11.30.Er"
    ],
    "keywords": [
      "armchair graphene nanoribbons",
      "exceptional points",
      "pt-symmetry breaking",
      "single layer graphene nanoribbon",
      "dissipation"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "publisher": "APS",
      "journal": "Physical Review B",
      "year": 2011,
      "month": "Jun",
      "volume": 83,
      "number": 24,
      "pages": 241406
    },
    "note": {
      "typesetting": "TeX",
      "pages": 5,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "adsabs": "2011PhRvB..83x1406F"
    }
  }
}