{
  "id": "1507.00526",
  "version": "v1",
  "published": "2015-07-02T11:13:29.000Z",
  "updated": "2015-07-02T11:13:29.000Z",
  "title": "Resonant and inelastic Andreev tunneling observed on a carbon nanotube quantum dot",
  "authors": [
    "J. Gramich",
    "A. Baumgartner",
    "C. Schönenberger"
  ],
  "comment": "5 pages",
  "categories": [
    "cond-mat.mes-hall"
  ],
  "abstract": "We report the observation of two fundamental sub-gap transport processes through a quantum dot (QD) with a superconducting contact. The device consists of a carbon nanotube contacted by a Nb superconducting and a normal metal contact. First, we find a single resonance with position, shape and amplitude consistent with the theoretically predicted resonant Andreev tunneling (AT) through a single QD level. Second, we observe a series of discrete replicas of resonant AT at a separation of $\\sim145\\,\\mu$eV, with a gate, bias and temperature dependence characteristic for boson-assisted, inelastic AT, in which energy is exchanged between a bosonic bath and the electrons. The magnetic field dependence of the replica's amplitudes and energies suggest that two different bosons couple to the tunnel process.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2015-07-02T11:13:29.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "carbon nanotube quantum dot",
      "inelastic andreev tunneling",
      "predicted resonant andreev tunneling",
      "fundamental sub-gap transport processes",
      "normal metal contact"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 5,
      "language": "en",
      "license": "arXiv",
      "status": "editable"
    }
  }
}