{
  "id": "cond-mat/0605403",
  "version": "v1",
  "published": "2006-05-16T09:28:57.000Z",
  "updated": "2006-05-16T09:28:57.000Z",
  "title": "Absence of extended states in a ladder model of DNA",
  "authors": [
    "E. Diaz",
    "A. Sedrakyan",
    "D. Sedrakyan",
    "F. Dominguez-Adame"
  ],
  "comment": "4 RevTex pages, 4 figures included",
  "journal": "Phys. Rev. B 75, 014201 (2007)",
  "doi": "10.1103/PhysRevB.75.014201",
  "categories": [
    "cond-mat.dis-nn",
    "cond-mat.soft"
  ],
  "abstract": "We consider a ladder model of DNA for describing carrier transport in a fully coherent regime through finite segments. A single orbital is associated to each base, and both interstrand and intrastrand overlaps are considered within the nearest-neighbor approximation. Conduction through the sugar-phosphate backbone is neglected. We study analytically and numerically the spatial extend of the corresponding states by means of the Landauer and Lyapunov exponents. We conclude that intrinsic-DNA correlations, arising from the natural base pairing, does not suffice to observe extended states, in contrast to previous claims.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2006-05-16T09:28:57.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "ladder model",
      "extended states",
      "fully coherent regime",
      "finite segments",
      "natural base"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "publisher": "APS",
      "journal": "Phys. Rev. B"
    },
    "note": {
      "typesetting": "RevTeX",
      "pages": 0,
      "language": "en",
      "license": "arXiv",
      "status": "editable"
    }
  }
}