{
  "id": "0812.3782",
  "version": "v2",
  "published": "2008-12-19T13:25:41.000Z",
  "updated": "2009-04-16T15:22:12.000Z",
  "title": "Distance dependence of entanglement generation via a bosonic heat bath",
  "authors": [
    "Thomas Zell",
    "Friedemann Queisser",
    "Rochus Klesse"
  ],
  "comment": "4 pages, 3 figures, new title, final version to appear in Phys. Rev. Lett",
  "categories": [
    "quant-ph",
    "cond-mat.mes-hall"
  ],
  "abstract": "Within a generalized Caldeira-Leggett model we analyze the conditions under which a bosonic heat bath can entangle two microscopic quantum systems at a distance $r$. We find that the attainable entanglement is extremely distance-sensitive. Significant entanglement can only be achieved if the systems are within a {\\em microscopic} distance that is of order of the cut-off wavelength $\\lambda$ of the system-bath interaction. At larger distances the maximal entanglement is exponentially suppressed with a decay length of order $\\lambda$. We conclude that entanglement generation via a heat bath is not suitable for entangling remote objects.",
  "revisions": [
    {
      "version": "v2",
      "updated": "2009-04-16T15:22:12.000Z"
    }
  ],
  "analyses": {
    "subjects": [
      "03.67.Bg",
      "02.50.Ga",
      "03.65.Yz",
      "03.67.Mn"
    ],
    "keywords": [
      "bosonic heat bath",
      "entanglement generation",
      "distance dependence",
      "microscopic quantum systems",
      "generalized caldeira-leggett model"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "doi": "10.1103/PhysRevLett.102.160501",
      "journal": "Physical Review Letters",
      "year": 2009,
      "month": "Apr",
      "volume": 102,
      "number": 16,
      "pages": 160501
    },
    "note": {
      "typesetting": "TeX",
      "pages": 4,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "adsabs": "2009PhRvL.102p0501Z"
    }
  }
}