{
  "id": "1205.4331",
  "version": "v2",
  "published": "2012-05-19T14:39:56.000Z",
  "updated": "2012-06-04T15:37:46.000Z",
  "title": "On entanglement evolution across defects in critical chains",
  "authors": [
    "Viktor Eisler",
    "Ingo Peschel"
  ],
  "comment": "11 pages, 5 figures, minor changes, reference added",
  "journal": "EPL 99, 20001 (2012)",
  "categories": [
    "cond-mat.stat-mech"
  ],
  "abstract": "We consider a local quench where two free-fermion half-chains are coupled via a defect. We show that the logarithmic increase of the entanglement entropy is governed by the same effective central charge which appears in the ground-state properties and which is known exactly. For unequal initial filling of the half-chains, we determine the linear increase of the entanglement entropy.",
  "revisions": [
    {
      "version": "v2",
      "updated": "2012-06-04T15:37:46.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "entanglement evolution",
      "critical chains",
      "entanglement entropy",
      "local quench",
      "ground-state properties"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "doi": "10.1209/0295-5075/99/20001",
      "journal": "EPL (Europhysics Letters)",
      "year": 2012,
      "month": "Jul",
      "volume": 99,
      "number": 2,
      "pages": 20001
    },
    "note": {
      "typesetting": "TeX",
      "pages": 11,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "adsabs": "2012EL.....9920001E"
    }
  }
}