{
  "id": "1307.0598",
  "version": "v2",
  "published": "2013-07-02T06:47:46.000Z",
  "updated": "2013-12-09T13:27:41.000Z",
  "title": "Correlations of heat and charge currents in quantum-dot thermoelectric engines",
  "authors": [
    "Rafael Sánchez",
    "Björn Sothmann",
    "Andrew N. Jordan",
    "Markus Büttiker"
  ],
  "comment": "17 pages, 7 figures. Published version",
  "journal": "New J. Phys. 15, 125001 (2013)",
  "doi": "10.1088/1367-2630/15/12/125001",
  "categories": [
    "cond-mat.mes-hall"
  ],
  "abstract": "We analyze the noise properties of both electric charge and heat currents as well as their correlations in a quantum-dot based thermoelectric engine. The engine is a three-terminal conductor with crossed heat and charge flows where heat fluctuations can be monitored by a charge detector. We investigate the mutual influence of charge and heat dynamics and how it is manifested in the current and noise properties. In the presence of energy-dependent tunneling, operating conditions are discussed where a charge current can be generated by heat conversion. In addition, heat can be pumped into the hot source by driving a charge current in the coupled conductor. An optimal configuration is found for structures in which the energy dependence of tunneling maximizes asymmetric transmission with maximal charge-heat cross-correlations. Remarkably, at a voltage that stalls the heat engine we find that in the optimal case the non-equilibrium state is maintained by fluctuations in the heat and charge current only.",
  "revisions": [
    {
      "version": "v2",
      "updated": "2013-12-09T13:27:41.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "charge current",
      "quantum-dot thermoelectric engines",
      "noise properties",
      "maximal charge-heat cross-correlations",
      "tunneling maximizes asymmetric transmission"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "journal": "New Journal of Physics",
      "year": 2013,
      "month": "Dec",
      "volume": 15,
      "number": 12,
      "pages": 125001
    },
    "note": {
      "typesetting": "TeX",
      "pages": 17,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "adsabs": "2013NJPh...15l5001S"
    }
  }
}