{
  "id": "cond-mat/0606325",
  "version": "v1",
  "published": "2006-06-13T12:51:30.000Z",
  "updated": "2006-06-13T12:51:30.000Z",
  "title": "Quantum Phase Transitions in the Bosonic Single-Impurity Anderson Model",
  "authors": [
    "Hyun-Jung Lee",
    "Ralf Bulla"
  ],
  "comment": "4 pages, 4 figures",
  "journal": "Eur. Phys. J. B 56, 199 (2007)",
  "doi": "10.1140/epjb/e2007-00118-3",
  "categories": [
    "cond-mat.stat-mech",
    "cond-mat.other"
  ],
  "abstract": "We consider a quantum impurity model in which a bosonic impurity level is coupled to a non-interacting bosonic bath, with the bosons at the impurity site subject to a local Coulomb repulsion U. Numerical renormalization group calculations for this bosonic single-impurity Anderson model reveal a zero-temperature phase diagram where Mott phases with reduced charge fluctuations are separated from a Bose-Einstein condensed phase by lines of quantum critical points. We discuss possible realizations of this model, such as atomic quantum dots in optical lattices. Furthermore, the bosonic single-impurity Anderson model appears as an effective impurity model in a dynamical mean-field theory of the Bose-Hubbard model.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2006-06-13T12:51:30.000Z"
    }
  ],
  "analyses": {
    "subjects": [
      "05.10.Cc",
      "05.30.Jp",
      "03.75.Nt"
    ],
    "keywords": [
      "quantum phase transitions",
      "bosonic single-impurity anderson model reveal",
      "bosonic single-impurity anderson model appears",
      "impurity model"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "journal": "European Physical Journal B",
      "year": 2007,
      "month": "Apr",
      "volume": 56,
      "number": 3,
      "pages": 199
    },
    "note": {
      "typesetting": "TeX",
      "pages": 4,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "adsabs": "2007EPJB...56..199L"
    }
  }
}