{
  "id": "1503.04207",
  "version": "v2",
  "published": "2015-03-13T20:01:41.000Z",
  "updated": "2015-04-11T19:58:43.000Z",
  "title": "Quench dynamics of fermion-parity switches in a Josephson junction",
  "authors": [
    "B. Tarasinski",
    "D. Chevallier",
    "Jimmy A. Hutasoit",
    "C. W. J. Beenakker"
  ],
  "comment": "4+2 pages",
  "categories": [
    "cond-mat.mes-hall"
  ],
  "abstract": "A Josephson junction may be driven through a transition where the superconducting condensate favors an odd over an even number of electrons. At this switch in the ground-state fermion parity, an Andreev bound state crosses through the Fermi level, producing a zero-mode that can be probed by electrical contact to a grounded metal. We calculate the time-dependent charge transfer between superconductor and metal for a linear sweep through the transition. One single quasiparticle is exchanged with charge $Q$ depending on the coupling energies $\\gamma_1,\\gamma_2$ of the metal to the Majorana operators of the zero-mode. While $Q$ equals the electron charge $e$ in the adiabatic limit of slow driving, in the opposite quenched limit $Q=2e\\sqrt{\\gamma_1\\gamma_2}/(\\gamma_1+\\gamma_2)$ varies between $0$ and $e$. This provides a method to produce single charge-neutral quasiparticles on demand.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2015-03-13T20:01:41.000Z",
      "journal": null,
      "doi": null
    },
    {
      "version": "v2",
      "updated": "2015-04-11T19:58:43.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "josephson junction",
      "quench dynamics",
      "fermion-parity switches",
      "produce single charge-neutral quasiparticles",
      "andreev bound state crosses"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 2,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "adsabs": "2015arXiv150304207T"
    }
  }
}