{
  "id": "cond-mat/9904201",
  "version": "v1",
  "published": "1999-04-14T13:31:35.000Z",
  "updated": "1999-04-14T13:31:35.000Z",
  "title": "Nonuniversality in quantum wires with off-diagonal disorder: a geometric point of view",
  "authors": [
    "P. W. Brouwer",
    "C. Mudry",
    "A. Furusaki"
  ],
  "comment": "12 pages, RevTeX; 3 figures included with epsf",
  "journal": "Nucl. Phys. B 565, 653 (2000)",
  "doi": "10.1016/S0550-3213(99)00518-0",
  "categories": [
    "cond-mat.dis-nn",
    "cond-mat.mes-hall"
  ],
  "abstract": "It is shown that, in the scaling regime, transport properties of quantum wires with off-diagonal disorder are described by a family of scaling equations that depend on two parameters: the mean free path and an additional continuous parameter. The existing scaling equation for quantum wires with off-diagonal disorder [Brouwer et al., Phys. Rev. Lett. 81, 862 (1998)] is a special point in this family. Both parameters depend on the details of the microscopic model. Since there are two parameters involved, instead of only one, localization in a wire with off-diagonal disorder is not universal. We take a geometric point of view and show that this nonuniversality follows from the fact that the group of transfer matrices is not semi-simple. Our results are illustrated with numerical simulations for a tight-binding model with random hopping amplitudes.",
  "revisions": [
    {
      "version": "v1",
      "updated": "1999-04-14T13:31:35.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "off-diagonal disorder",
      "quantum wires",
      "geometric point",
      "nonuniversality",
      "scaling equation"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "publisher": "Elsevier",
      "journal": "Nucl. Phys. B"
    },
    "note": {
      "typesetting": "RevTeX",
      "pages": 12,
      "language": "en",
      "license": "arXiv",
      "status": "editable"
    }
  }
}