{
  "id": "cond-mat/0204444",
  "version": "v1",
  "published": "2002-04-20T16:54:30.000Z",
  "updated": "2002-04-20T16:54:30.000Z",
  "title": "Control of Dephasing and Phonon Emission in Coupled Quantum Dots",
  "authors": [
    "S. Debald",
    "T. Brandes",
    "B. Kramer"
  ],
  "comment": "4 pages, 3 figures, accepted for publication as Rapid Comm. in Phys. Rev. B",
  "journal": "Phys. Rev. B 66, 041301(R) (2002)",
  "doi": "10.1103/PhysRevB.66.041301",
  "categories": [
    "cond-mat.mes-hall"
  ],
  "abstract": "We predict that phonon subband quantization can be detected in the non-linear electron current through double quantum dot qubits embedded into nano-size semiconductor slabs, acting as phonon cavities. For particular values of the dot level splitting $\\Delta$, piezo-electric or deformation potential scattering is either drastically reduced as compared to the bulk case, or strongly enhanced due to phonon van Hove singularities. By tuning $\\Delta$ via gate voltages, one can either control dephasing, or strongly increase emission into phonon modes with characteristic angular distributions.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2002-04-20T16:54:30.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "coupled quantum dots",
      "phonon emission",
      "phonon van hove singularities",
      "phonon subband quantization",
      "characteristic angular distributions"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "publisher": "APS",
      "journal": "Phys. Rev. B"
    },
    "note": {
      "typesetting": "TeX",
      "pages": 4,
      "language": "en",
      "license": "arXiv",
      "status": "editable"
    }
  }
}