{
  "id": "1210.2267",
  "version": "v2",
  "published": "2012-10-08T13:14:15.000Z",
  "updated": "2013-01-18T10:58:17.000Z",
  "title": "Renormalization effects in interacting quantum dots coupled to superconducting leads",
  "authors": [
    "David Futterer",
    "Jacek Swiebodzinski",
    "Michele Governale",
    "Jürgen König"
  ],
  "comment": "11 pages, 10 figures",
  "journal": "Phys. Rev. B 87, 014509 (2013)",
  "doi": "10.1103/PhysRevB.87.014509",
  "categories": [
    "cond-mat.mes-hall"
  ],
  "abstract": "We study subgap transport through an interacting quantum dot tunnel coupled to one normal and two superconducting leads. To check the reliability of an approximation of an infinitely-large gap $\\Delta$ in the superconducting leads and weak tunnel coupling to the normal lead, we perform a $1/\\Delta$ expansion, and we analyze next-to-leading order corrections in the tunnel coupling to the normal lead. Furthermore, we propose a resummation approach to calculate the Andreev bound states for finite $\\Delta$. The results are substantially more accurate than those obtained by mean-field treatments and favorably compare with numerical exact results.",
  "revisions": [
    {
      "version": "v2",
      "updated": "2013-01-18T10:58:17.000Z"
    }
  ],
  "analyses": {
    "subjects": [
      "74.45.+c",
      "73.63.Kv"
    ],
    "keywords": [
      "interacting quantum dots",
      "renormalization effects",
      "quantum dot tunnel",
      "superconducting",
      "analyze next-to-leading order corrections"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "publisher": "APS",
      "journal": "Physical Review B",
      "year": 2013,
      "month": "Jan",
      "volume": 87,
      "number": 1,
      "pages": "014509"
    },
    "note": {
      "typesetting": "TeX",
      "pages": 11,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "adsabs": "2013PhRvB..87a4509F"
    }
  }
}