{
  "id": "1605.07179",
  "version": "v1",
  "published": "2016-05-23T20:00:02.000Z",
  "updated": "2016-05-23T20:00:02.000Z",
  "title": "No-go theorem for a time-reversal invariant topological phase in noninteracting systems coupled to conventional superconductors",
  "authors": [
    "Arbel Haim",
    "Erez Berg",
    "Karsten Flensberg",
    "Yuval Oreg"
  ],
  "comment": "5 pages, 2 figures",
  "categories": [
    "cond-mat.mes-hall",
    "cond-mat.supr-con"
  ],
  "abstract": "We prove that a system of non-interacting electrons proximity coupled to a conventional $s$-wave superconductor cannot realize a time reversal invariant topological phase. This is done by showing that for such a system, in either one or two dimensions, the topological invariant of the corresponding symmetry class (DIII) is always trivial. Our results suggest that the pursuit of Majorana bound states in time-reversal invariant systems should be aimed at interacting systems or at proximity to unconventional superconductors.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2016-05-23T20:00:02.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "time-reversal invariant topological phase",
      "no-go theorem",
      "conventional superconductors",
      "noninteracting systems",
      "time reversal invariant topological phase"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 5,
      "language": "en",
      "license": "arXiv",
      "status": "editable"
    }
  }
}