{
  "id": "0901.3520",
  "version": "v1",
  "published": "2009-01-22T17:09:50.000Z",
  "updated": "2009-01-22T17:09:50.000Z",
  "title": "Phonon-mediated non-equilibrium interaction between nanoscale devices",
  "authors": [
    "G. J. Schinner",
    "H. P. Tranitz",
    "W. Wegscheider",
    "J. P. Kotthaus",
    "S. Ludwig"
  ],
  "comment": "4 pages, 3 figures",
  "categories": [
    "cond-mat.mes-hall",
    "cond-mat.other"
  ],
  "abstract": "Interactions between mesoscopic devices induced by interface acoustic phonons propagating in the plane of a two-dimensional electron system (2DES) are investigated by phonon-spectroscopy. In our experiments ballistic electrons injected from a biased quantum point contact emit phonons and a portion of them are reabsorbed exciting electrons in a nearby degenerate 2DES. We perform energy spectroscopy on these excited electrons employing a tunable electrostatic barrier in an electrically separate and unbiased detector circuit. The transferred energy is found to be bounded by a maximum value corresponding to Fermi-level electrons excited and back-scattered by absorbing interface phonons. Our results imply that phonon-mediated interaction plays an important role for the decoherence of solid-state-based quantum circuits.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2009-01-22T17:09:50.000Z"
    }
  ],
  "analyses": {
    "subjects": [
      "73.63.-b",
      "03.67.-a",
      "68.65.-k",
      "73.23.-b"
    ],
    "keywords": [
      "phonon-mediated non-equilibrium interaction",
      "nanoscale devices",
      "quantum point contact emit phonons",
      "biased quantum point contact emit",
      "two-dimensional electron system"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "doi": "10.1103/PhysRevLett.102.186801",
      "journal": "Physical Review Letters",
      "year": 2009,
      "month": "May",
      "volume": 102,
      "number": 18,
      "pages": 186801
    },
    "note": {
      "typesetting": "TeX",
      "pages": 4,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "adsabs": "2009PhRvL.102r6801S"
    }
  }
}