{
  "id": "1411.2558",
  "version": "v1",
  "published": "2014-11-10T19:59:44.000Z",
  "updated": "2014-11-10T19:59:44.000Z",
  "title": "Supercurrent dephasing by electron-electron interactions",
  "authors": [
    "Andrew G. Semenov",
    "Andrei D. Zaikin"
  ],
  "comment": "11 pages, 3 figures",
  "categories": [
    "cond-mat.mes-hall"
  ],
  "abstract": "We demonstrate that in sufficiently long diffusive superconducting-normal-superconducting ($SNS$) junctions dc Josephson current is exponentially suppressed by electron-electron interactions down to zero temperature. This suppression is caused by the effect of {\\it Cooper pair dephasing} which occurs in the normal metal and defines a new fundamental length scale $L_\\varphi$ in the problem. Provided the temperature length exceeds $L_\\varphi$ this dephasing length can be conveniently extracted from equilibrium measurements of the Josephson current.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2014-11-10T19:59:44.000Z"
    }
  ],
  "analyses": {
    "subjects": [
      "73.23.Ra",
      "74.25.F-",
      "74.40.-n"
    ],
    "keywords": [
      "electron-electron interactions",
      "supercurrent dephasing",
      "junctions dc josephson current",
      "temperature length exceeds",
      "fundamental length scale"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "doi": "10.1103/PhysRevB.91.024505",
      "journal": "Physical Review B",
      "year": 2015,
      "month": "Jan",
      "volume": 91,
      "number": 2,
      "pages": "024505"
    },
    "note": {
      "typesetting": "TeX",
      "pages": 11,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "adsabs": "2015PhRvB..91b4505S"
    }
  }
}