{
  "id": "1507.00963",
  "version": "v1",
  "published": "2015-07-03T16:21:07.000Z",
  "updated": "2015-07-03T16:21:07.000Z",
  "title": "Effect of double local quenches on Loschmidt echo and entanglement entropy of a one-dimensional quantum system",
  "authors": [
    "Atanu Rajak",
    "Uma Divakaran"
  ],
  "comment": "11 pages, 10 figures",
  "categories": [
    "cond-mat.stat-mech",
    "cond-mat.other",
    "quant-ph"
  ],
  "abstract": "We study the effect of two simultaneous local quenches on the evolution of Loschmidt echo and entanglement entropy of a one dimensional transverse Ising model. In this work, one of the local quenches involves the connection of two spin-1/2 chains at a certain time and the other local quench corresponds to a sudden change in the magnitude of the transverse field at a given site in one of the spin chains. We numerically calculate the dynamics associated with the Loschmidt echo and the entanglement entropy as a result of such double quenches, and discuss various timescales involved in this problem using the picture of quasiparticles generated as a result of such quenches.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2015-07-03T16:21:07.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "one-dimensional quantum system",
      "loschmidt echo",
      "entanglement entropy",
      "double local quenches",
      "local quench corresponds"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 11,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "adsabs": "2015arXiv150700963R"
    }
  }
}