{
  "id": "0902.0219",
  "version": "v2",
  "published": "2009-02-02T08:27:19.000Z",
  "updated": "2009-02-08T13:24:10.000Z",
  "title": "Topological quantum phase transition in an extended Kitaev spin model",
  "authors": [
    "Xiao-Feng Shi",
    "Yue Yu",
    "J. Q. You",
    "Franco Nori"
  ],
  "comment": "9 Pages, 4 figures",
  "journal": "Phys. Rev. B 79, 134431 (2009)",
  "categories": [
    "cond-mat.stat-mech",
    "cond-mat.str-el",
    "quant-ph"
  ],
  "abstract": "We study the quantum phase transition between Abelian and non-Abelian phases in an extended Kitaev spin model on the honeycomb lattice, where the periodic boundary condition is applied by placing the lattice on a torus. Our analytical results show that this spin model exhibits a continuous quantum phase transition. Also, we reveal the relationship between bipartite entanglement and the ground-state energy. Our approach directly shows that both the entanglement and the ground-state energy can be used to characterize the topological quantum phase transition in the extended Kitaev spin model.",
  "revisions": [
    {
      "version": "v2",
      "updated": "2009-02-08T13:24:10.000Z"
    }
  ],
  "analyses": {
    "subjects": [
      "03.67.Mn",
      "03.65.Vf",
      "64.70.Tg",
      "05.30.Pr"
    ],
    "keywords": [
      "extended kitaev spin model",
      "topological quantum phase transition",
      "ground-state energy",
      "continuous quantum phase transition",
      "periodic boundary condition"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "publisher": "APS",
      "journal": "Physical Review B",
      "doi": "10.1103/PhysRevB.79.134431",
      "year": 2009,
      "month": "Apr",
      "volume": 79,
      "number": 13,
      "pages": 134431
    },
    "note": {
      "typesetting": "TeX",
      "pages": 9,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "adsabs": "2009PhRvB..79m4431S"
    }
  }
}