{
  "id": "1902.03248",
  "version": "v1",
  "published": "2019-02-08T19:00:03.000Z",
  "updated": "2019-02-08T19:00:03.000Z",
  "title": "Tunable Josephson $π$ junctions without Coulomb blockade",
  "authors": [
    "Arbel Haim"
  ],
  "comment": "5 pages, 5 figures",
  "categories": [
    "cond-mat.mes-hall",
    "cond-mat.supr-con"
  ],
  "abstract": "We study a Josephson junction between two time-reversal-invariant topological superconductors. We show this system goes through a series of multiple transitions between a $0$-junction phase, where the free energy has its minimum for a superconducting phase difference of zero, and a $\\pi$-junction phase, where the free energy has its minimum for a superconducting phase difference of $\\pi$. These transitions occur in the absence of Coulomb blockade or magnetic impurities. Rather, they are driven by the spin-orbit coupling in the junction, and can be probed, for example, by measuring the tunneling density of states or the critical current as a function of the junction's length or its Fermi velocity.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2019-02-08T19:00:03.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "coulomb blockade",
      "tunable josephson",
      "superconducting phase difference",
      "junction phase",
      "free energy"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 5,
      "language": "en",
      "license": "arXiv",
      "status": "editable"
    }
  }
}