{
  "id": "1301.3806",
  "version": "v1",
  "published": "2013-01-16T20:02:28.000Z",
  "updated": "2013-01-16T20:02:28.000Z",
  "title": "Time evolution of local observables after quenching to an integrable model",
  "authors": [
    "Jean-Sebastien Caux",
    "Fabian H. L. Essler"
  ],
  "comment": "7 pages",
  "journal": "Phys. Rev. Lett. 110, 257203 (2013)",
  "doi": "10.1103/PhysRevLett.110.257203",
  "categories": [
    "cond-mat.stat-mech",
    "quant-ph"
  ],
  "abstract": "We consider quantum quenches in integrable models. We argue that the behaviour of local observables at late times after the quench is given by their expectation values with respect to a single representative Hamiltonian eigenstate. This can be viewed as a generalization of the eigenstate thermalization hypothesis to quantum integrable models. We present a method for constructing this representative state by means of a generalized Thermodynamic Bethe Ansatz (GTBA). Going further, we introduce a framework for calculating the time dependence of local observables as they evolve towards their stationary values. As an explicit example we consider quantum quenches in the transverse-field Ising chain and show that previously derived results are recovered efficiently within our framework.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2013-01-16T20:02:28.000Z"
    }
  ],
  "analyses": {
    "subjects": [
      "05.70.Ln",
      "03.75.Kk",
      "02.30.Ik",
      "75.10.Jm"
    ],
    "keywords": [
      "local observables",
      "time evolution",
      "quantum quenches",
      "single representative hamiltonian eigenstate",
      "eigenstate thermalization hypothesis"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "publisher": "APS",
      "journal": "Physical Review Letters",
      "year": 2013,
      "month": "Jun",
      "volume": 110,
      "number": 25,
      "pages": 257203
    },
    "note": {
      "typesetting": "TeX",
      "pages": 7,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "inspire": 1211279,
      "adsabs": "2013PhRvL.110y7203C"
    }
  }
}