{
  "id": "cond-mat/0610309",
  "version": "v2",
  "published": "2006-10-11T17:10:28.000Z",
  "updated": "2007-05-20T20:31:06.000Z",
  "title": "Heat conduction and diffusion of hard disks in a narrow channel",
  "authors": [
    "Adam Lipowski",
    "Dorota Lipowska"
  ],
  "comment": "4 pages, accepted in Phys.Rev.E",
  "journal": "Phys. Rev. E 75, 052201 (2007)",
  "doi": "10.1103/PhysRevE.75.052201",
  "categories": [
    "cond-mat.stat-mech"
  ],
  "abstract": "Using molecular dynamics we study heat conduction and diffusion of hard disks in one dimensional narrow channels. When collisions preserve momentum the heat conduction $\\kappa$ diverges with the number of disks $N$ as $\\kappa\\sim N^\\alpha$ $(\\alpha \\approx 1/3)$. Such a behaviour is seen both when the ordering of disks is fixed ('pen-case' model), and when they can exchange their positions. Momentum conservation results also in sound-wave effects that enhance diffusive behaviour and on an intermediate time scale (that diverges in the thermodynamic limit) normal diffusion takes place even in the 'pen-case' model. When collisions do not preserve momentum, $\\kappa$ remains finite and sound-wave effects are absent.",
  "revisions": [
    {
      "version": "v2",
      "updated": "2007-05-20T20:31:06.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "hard disks",
      "sound-wave effects",
      "collisions preserve momentum",
      "intermediate time scale",
      "dimensional narrow channels"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "publisher": "APS",
      "journal": "Phys. Rev. E"
    },
    "note": {
      "typesetting": "TeX",
      "pages": 4,
      "language": "en",
      "license": "arXiv",
      "status": "editable"
    }
  }
}