{
  "id": "cond-mat/0012416",
  "version": "v2",
  "published": "2000-12-21T17:33:27.000Z",
  "updated": "2001-10-19T12:35:08.000Z",
  "title": "On random graphs and the statistical mechanics of granular matter",
  "authors": [
    "Johannes Berg",
    "Anita Mehta"
  ],
  "comment": "minor changes, to appear in EPL",
  "journal": "Europhys. Lett. 56 (6), 784-790 (2001)",
  "doi": "10.1209/epl/i2001-00588-3",
  "categories": [
    "cond-mat.stat-mech"
  ],
  "abstract": "The dynamics of spins on a random graph with ferromagnetic three-spin interactions is used to model the compaction of granular matter under a series of taps. Taps are modelled as the random flipping of a small fraction of the spins followed by a quench at zero temperature. We find that the density approached during a logarithmically slow compaction - the random-close-packing density - corresponds to a dynamical phase transition. We discuss the the role of cascades of successive spin-flips in this model and link them with density-noise power fluctuations observed in recent experiments.",
  "revisions": [
    {
      "version": "v2",
      "updated": "2001-10-19T12:35:08.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "random graph",
      "granular matter",
      "statistical mechanics",
      "density-noise power fluctuations",
      "ferromagnetic three-spin interactions"
    ],
    "tags": [
      "journal article"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 0,
      "language": "en",
      "license": "arXiv",
      "status": "editable"
    }
  }
}