{
  "id": "cond-mat/0407534",
  "version": "v1",
  "published": "2004-07-20T19:33:09.000Z",
  "updated": "2004-07-20T19:33:09.000Z",
  "title": "Transport in nanoscale systems: the microcanonical versus grand-canonical picture",
  "authors": [
    "M. Di Ventra",
    "T. N. Todorov"
  ],
  "comment": "6 pages, 1 figure",
  "journal": "J. Phys. Cond. Matt. 16, 8025 (2004)",
  "doi": "10.1088/0953-8984/16/45/024",
  "categories": [
    "cond-mat.mes-hall"
  ],
  "abstract": "We analyse a picture of transport in which two large but finite charged electrodes discharge across a nanoscale junction. We identify a functional whose minimisation, within the space of all bound many-body wavefunctions, defines an instantaneous steady state. We also discuss factors that favour the onset of steady-state conduction in such systems, make a connection with the notion of entropy, and suggest a novel source of steady-state noise. Finally, we prove that the true many-body total current in this closed system is given exactly by the one-electron total current, obtained from time-dependent density-functional theory.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2004-07-20T19:33:09.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "nanoscale systems",
      "grand-canonical picture",
      "true many-body total current",
      "time-dependent density-functional theory",
      "finite charged electrodes discharge"
    ],
    "tags": [
      "journal article"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 6,
      "language": "en",
      "license": "arXiv",
      "status": "editable"
    }
  }
}