{
  "id": "1210.0665",
  "version": "v3",
  "published": "2012-10-02T06:29:16.000Z",
  "updated": "2013-08-19T07:01:55.000Z",
  "title": "Entanglement of nanoelectromechanical oscillators by Cooper-pair tunneling",
  "authors": [
    "Stefan Walter",
    "Jan Carl Budich",
    "Jens Eisert",
    "Björn Trauzettel"
  ],
  "comment": "11 pages, 3 figures",
  "journal": "Phys. Rev. B 88, 035441 (2013)",
  "doi": "10.1103/PhysRevB.88.035441",
  "categories": [
    "cond-mat.mes-hall",
    "quant-ph"
  ],
  "abstract": "We demonstrate that entanglement of two macroscopic nanoelectromechanical resonators -- coupled to each other via a common detector, a tunnel junction -- can be generated by running a current through the device. We introduce a setup that overcomes generic limitations of proposals suggesting to entangle systems via a shared bath. At the heart of the proposal is an Andreev entangler setup, representing an experimentally feasible way of entangling two nanomechanical oscillators. Instead of relying on the coherence of a (fermionic) bath, in the Andreev entangler setup, a split Cooper-pair that coherently tunnels to each oscillator mediates their coupling and thereby induces entanglement between them. Since entanglement is in each instance generated by Markovian and non-Markovian noisy open system dynamics in an out-of-equilibrium situation, we argue that the present scheme also opens up perspectives to observe dissipation-driven entanglement in a condensed-matter system.",
  "revisions": [
    {
      "version": "v3",
      "updated": "2013-08-19T07:01:55.000Z"
    }
  ],
  "analyses": {
    "subjects": [
      "03.67.Bg",
      "03.65.Ud",
      "85.85.+j"
    ],
    "keywords": [
      "entanglement",
      "nanoelectromechanical oscillators",
      "andreev entangler setup",
      "cooper-pair tunneling",
      "non-markovian noisy open system dynamics"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "publisher": "APS",
      "journal": "Physical Review B",
      "year": 2013,
      "month": "Jul",
      "volume": 88,
      "number": 3,
      "pages": "035441"
    },
    "note": {
      "typesetting": "TeX",
      "pages": 11,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "adsabs": "2013PhRvB..88c5441W"
    }
  }
}