{
  "id": "1208.4039",
  "version": "v2",
  "published": "2012-08-17T06:40:34.000Z",
  "updated": "2012-10-11T11:38:18.000Z",
  "title": "The Hatano-Sasa equality: transitions between steady states in a granular gas",
  "authors": [
    "Anne Mounier",
    "Antoine Naert"
  ],
  "categories": [
    "cond-mat.stat-mech"
  ],
  "abstract": "An experimental study is presented, about transitions between Non-Equilibrium Steady States (NESS) in a dissipative medium. The core device is a small rotating blade that imposes cycles of increasing and decreasing forcings to a granular gas, shaken independently. The velocity of this blade is measured, subject to the transitions imposed by the periodic torque variation. The Hatano-Sasa equality, that generalises the second principle of thermodynamics to NESS, is verified with a high accuracy (a few $10^{-3}$), at different variation rates. Besides, it is observed that the fluctuating velocity at fixed forcing follows a generalised Gumbel distribution. A rough evaluation of the mean free path in the granular gas suggests that it might be a correlated system, at least partially.",
  "revisions": [
    {
      "version": "v2",
      "updated": "2012-10-11T11:38:18.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "granular gas",
      "hatano-sasa equality",
      "transitions",
      "non-equilibrium steady states",
      "periodic torque variation"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "doi": "10.1209/0295-5075/100/30002",
      "journal": "EPL (Europhysics Letters)",
      "year": 2012,
      "month": "Nov",
      "volume": 100,
      "number": 3,
      "pages": 30002
    },
    "note": {
      "typesetting": "TeX",
      "pages": 0,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "adsabs": "2012EL....10030002M"
    }
  }
}