{
  "id": "cond-mat/0310199",
  "version": "v1",
  "published": "2003-10-09T07:52:38.000Z",
  "updated": "2003-10-09T07:52:38.000Z",
  "title": "Entanglement production in a chaotic quantum dot",
  "authors": [
    "C. W. J. Beenakker",
    "M. Kindermann",
    "C. M. Marcus",
    "A. Yacoby"
  ],
  "comment": "12 pages, 2 figures, Kluwer style file included",
  "journal": "Fundamental Problems of Mesoscopic Physics, eds. I.V. Lerner, B.L. Altshuler, and Y. Gefen, NATO Science Series II. Vol. 154 (Kluwer, Dordrecht, 2004)",
  "doi": "10.1007/1-4020-2193-3_10",
  "categories": [
    "cond-mat.mes-hall",
    "quant-ph"
  ],
  "abstract": "It has recently been shown theoretically that elastic scattering in the Fermi sea produces quantum mechanically entangled states. The mechanism is similar to entanglement by a beam splitter in optics, but a key distinction is that the electronic mechanism works even if the source is in local thermal equilibrium. An experimental realization was proposed using tunneling between two edge channels in a strong magnetic field. Here we investigate a low-magnetic field alternative, using multiple scattering in a quantum dot. Two pairs of single-channel point contacts define a pair of qubits. If the scattering is chaotic, a universal statistical description of the entanglement production (quantified by the concurrence) is possible. The mean concurrence turns out to be almost independent on whether time-reversal symmetry is broken or not. We show how the concurrence can be extracted from a Bell inequality using low-frequency noise measurements, without requiring the tunneling assumption of earlier work.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2003-10-09T07:52:38.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "chaotic quantum dot",
      "entanglement production",
      "quantum mechanically entangled states",
      "sea produces quantum"
    ],
    "tags": [
      "journal article"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 12,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "adsabs": "2004fpmp.book..167B"
    }
  }
}