{
  "id": "1107.5956",
  "version": "v1",
  "published": "2011-07-29T13:00:14.000Z",
  "updated": "2011-07-29T13:00:14.000Z",
  "title": "Fluctuation-dissipation relations and critical quenches in the transverse field Ising chain",
  "authors": [
    "Laura Foini",
    "Leticia F. Cugliandolo",
    "Andrea Gambassi"
  ],
  "comment": "5 pages, 3 figures",
  "journal": "Phys. Rev. B 84, 212404 (2011)",
  "categories": [
    "cond-mat.stat-mech",
    "quant-ph"
  ],
  "abstract": "Dynamic correlation and response functions of classical and quantum systems in thermal equilibrium are connected by fluctuation-dissipation theorems, which allow an alternative definition of their (unique) temperature. Motivated by this fundamental property, we revisit the issue of thermalization of closed many-body quantum systems long after a sudden quench, focussing on the non-equilibrium dynamics of the Ising chain in a critical transverse field. We show the emergence of distinct observable-dependent effective temperatures, which rule out Gibbs thermalization in a strict sense but might still have a thermodynamic meaning.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2011-07-29T13:00:14.000Z"
    }
  ],
  "analyses": {
    "subjects": [
      "75.10.Pq",
      "02.30.Ik",
      "73.43.Nq",
      "75.40.Gb"
    ],
    "keywords": [
      "transverse field ising chain",
      "fluctuation-dissipation relations",
      "critical quenches",
      "closed many-body quantum systems long"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "publisher": "APS",
      "journal": "Physical Review B",
      "doi": "10.1103/PhysRevB.84.212404",
      "year": 2011,
      "month": "Dec",
      "volume": 84,
      "number": 21,
      "pages": 212404
    },
    "note": {
      "typesetting": "TeX",
      "pages": 5,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "adsabs": "2011PhRvB..84u2404F"
    }
  }
}