{
  "id": "1202.0438",
  "version": "v2",
  "published": "2012-02-02T14:23:10.000Z",
  "updated": "2012-03-13T10:08:55.000Z",
  "title": "Supercurrent blockade in Josephson junctions with a Majorana wire",
  "authors": [
    "A. Zazunov",
    "R. Egger"
  ],
  "comment": "6 pages, 2 figures, to appear in PRB",
  "journal": "Phys. Rev. B 85, 104514 (2012)",
  "doi": "10.1103/PhysRevB.85.104514",
  "categories": [
    "cond-mat.mes-hall",
    "cond-mat.supr-con"
  ],
  "abstract": "We study the Josephson effect for a topologically nontrivial superconducting (TS) wire with Majorana fermion end states and tunnel-coupled to s-wave BCS superconducting (S) electrodes. In an S-TS junction, no supercurrent flow is possible under fairly general conditions. For the S-TS-S junction, bulk TS quasiparticles must be accessible to have a Josephson effect. In the noninteracting case, we derive the exact current-phase relation (CPR) and find \\pi-periodic behavior with negative critical current for weak tunnel couplings. Charging effects then cause the anomalous CPR $I(\\varphi)=I_c \\cos\\varphi$, where the parity-sensitive critical current I_c provides a signature for Majorana states.",
  "revisions": [
    {
      "version": "v2",
      "updated": "2012-03-13T10:08:55.000Z"
    }
  ],
  "analyses": {
    "subjects": [
      "73.23.-b",
      "71.10.Pm",
      "74.50.+r"
    ],
    "keywords": [
      "supercurrent blockade",
      "josephson junctions",
      "majorana wire",
      "majorana fermion end states",
      "josephson effect"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "publisher": "APS",
      "journal": "Physical Review B",
      "year": 2012,
      "month": "Mar",
      "volume": 85,
      "number": 10,
      "pages": 104514
    },
    "note": {
      "typesetting": "TeX",
      "pages": 6,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "inspire": 1188379,
      "adsabs": "2012PhRvB..85j4514Z"
    }
  }
}