{
  "id": "cond-mat/0106018",
  "version": "v1",
  "published": "2001-06-01T15:12:04.000Z",
  "updated": "2001-06-01T15:12:04.000Z",
  "title": "Can mesoscopic fluctuations reverse the supercurrent through a disordered Josephson junction?",
  "authors": [
    "M. Titov",
    "Ph. Jacquod",
    "C. W. J. Beenakker"
  ],
  "comment": "2 pages",
  "journal": "Phys. Rev. B 65, 012504 (2002)",
  "doi": "10.1103/PhysRevB.65.012504",
  "categories": [
    "cond-mat.mes-hall"
  ],
  "abstract": "We calculate the Josephson coupling energy $U_J(\\phi)$ (related to the supercurrent $I=(2e/\\hbar) dU_J/d\\phi$) for a disordered normal metal between two superconductors with a phase difference $\\phi$. We demonstrate that the symmetry of the scattering matrix of non-interacting quasiparticles in zero magnetic field implies that $U_J(\\phi)$ has a minimum at $\\phi=0$. A maximum (that would lead to a $\\pi$-junction or negative superfluid density) is excluded for any realization of the disorder.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2001-06-01T15:12:04.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "mesoscopic fluctuations reverse",
      "disordered josephson junction",
      "supercurrent",
      "zero magnetic field implies",
      "josephson coupling energy"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "publisher": "APS",
      "journal": "Phys. Rev. B"
    },
    "note": {
      "typesetting": "TeX",
      "pages": 2,
      "language": "en",
      "license": "arXiv",
      "status": "editable"
    }
  }
}