{
  "id": "1409.5264",
  "version": "v1",
  "published": "2014-09-18T11:14:22.000Z",
  "updated": "2014-09-18T11:14:22.000Z",
  "title": "Topological superconductivity in Rashba semiconductors without a Zeeman field",
  "authors": [
    "Panagiotis Kotetes"
  ],
  "comment": "Main text: 5 pages with 3 panels of 10 figures in total; Supplementary material: 3.5 pages",
  "categories": [
    "cond-mat.mes-hall"
  ],
  "abstract": "In this manuscript I present new hybrid devices based on multi-wire/channel Rashba semiconductors, which harbor Majorana fermions (MFs) without a Zeeman field. In contrast, magnetic fluxes, supercurrents or electric fields can be employed, yielding an enhanced device manipulability. The generic topological phase diagram for two-nanowire/channel systems, exhibits features of quantum criticality and a rich interplay of phases with 0, 1 or 2 MFs per edge. The most prominent and experimentally feasible implementation, relies on the already existing platforms of InAs-2DEG on top of a Josephson junction. Appropriate design of the latter device, allows phases with 1 or 2 MFs, both detectable in zero-bias anomaly peaks with a single or double unit of conductance. The absence of the Zeeman field in these devices could be assisting for a Kondo-peak-free interpretation.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2014-09-18T11:14:22.000Z"
    }
  ],
  "analyses": {
    "subjects": [
      "74.78.-w",
      "74.45.+c",
      "85.25.-j"
    ],
    "keywords": [
      "zeeman field",
      "topological superconductivity",
      "generic topological phase diagram",
      "harbor majorana fermions",
      "multi-wire/channel rashba semiconductors"
    ],
    "publication": {
      "doi": "10.1103/PhysRevB.92.014514",
      "journal": "Physical Review B",
      "year": 2015,
      "month": "Jul",
      "volume": 92,
      "number": 1,
      "pages": "014514"
    },
    "note": {
      "typesetting": "TeX",
      "pages": 5,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "adsabs": "2015PhRvB..92a4514K"
    }
  }
}