{
  "id": "0909.3427",
  "version": "v1",
  "published": "2009-09-18T13:11:39.000Z",
  "updated": "2009-09-18T13:11:39.000Z",
  "title": "Full Counting Statistics of Quantum Point Contact with Time-dependent Transparency",
  "authors": [
    "Jin Zhang",
    "Y. Sherkunov",
    "N. d'Ambrumenil",
    "B. Muzykantskii"
  ],
  "comment": "13 pages, 8 figures",
  "journal": "Phys. Rev. B 80, 245308 (2009)",
  "doi": "10.1103/PhysRevB.80.245308",
  "categories": [
    "cond-mat.mes-hall"
  ],
  "abstract": "We analyse the zero temperature Full Counting Statistics (FCS) for the charge transfer across a biased tunnel junction. We find the FCS from the eigenvalues of the density matrix of outgoing states of one lead. In the general case of a general time-dependent bias and time-dependent transparency we solve for these eigenvalues numerically. We report the FCS for the case of a step pulse applied between the leads and a constant barrier transparency (this case is equivalent to Fermi edge singularity problem). We have also studied combinations of a time-dependent barrier transparency and biases between the leads. In particular we look at protocols which excite the minimal number of excitations for a given charge transfer (low noise electron source) and protocols which maximise entanglement of charge states.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2009-09-18T13:11:39.000Z"
    }
  ],
  "analyses": {
    "subjects": [
      "72.70.+m",
      "03.65.Ud",
      "73.23.-b"
    ],
    "keywords": [
      "quantum point contact",
      "time-dependent transparency",
      "fermi edge singularity problem",
      "zero temperature full counting statistics",
      "charge transfer"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "publisher": "APS",
      "journal": "Physical Review B",
      "year": 2009,
      "month": "Dec",
      "volume": 80,
      "number": 24,
      "pages": 245308
    },
    "note": {
      "typesetting": "TeX",
      "pages": 13,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "adsabs": "2009PhRvB..80x5308Z"
    }
  }
}