{
  "id": "1008.1467",
  "version": "v2",
  "published": "2010-08-09T08:52:27.000Z",
  "updated": "2010-11-03T17:00:03.000Z",
  "title": "Thermal conductance in a spin-boson model: Cotunneling and low temperature properties",
  "authors": [
    "Tomi Ruokola",
    "Teemu Ojanen"
  ],
  "comment": "7 pages, 5 figures",
  "journal": "Phys. Rev. B 83, 045417 (2011)",
  "doi": "10.1103/PhysRevB.83.045417",
  "categories": [
    "cond-mat.mes-hall",
    "quant-ph"
  ],
  "abstract": "Bosonic thermal transport through a two-level system is analyzed at temperatures below and comparable to the two-level energy splitting. It is shown that in the low-temperature regime transport is dominated by correlated two-boson processes analogous to electron cotunneling in quantum dots under Coulomb blockade. We present a detailed analysis of the sequential-cotunneling crossover and obtain essentially an analytic description of the transport problem. Perturbative analysis is complemented by employing scaling properties of the Ohmic spin-boson model, allowing us to extract an anomalous low temperature scaling of thermal conductance.",
  "revisions": [
    {
      "version": "v2",
      "updated": "2010-11-03T17:00:03.000Z"
    }
  ],
  "analyses": {
    "subjects": [
      "44.10.+i",
      "05.60.Gg",
      "63.22.-m",
      "44.40.+a"
    ],
    "keywords": [
      "low temperature properties",
      "thermal conductance",
      "cotunneling",
      "bosonic thermal transport",
      "low-temperature regime transport"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "publisher": "APS",
      "journal": "Physical Review B",
      "year": 2011,
      "month": "Jan",
      "volume": 83,
      "number": 4,
      "pages": "045417"
    },
    "note": {
      "typesetting": "TeX",
      "pages": 7,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "adsabs": "2011PhRvB..83d5417R"
    }
  }
}