{
  "id": "1011.2362",
  "version": "v2",
  "published": "2010-11-10T12:35:02.000Z",
  "updated": "2011-05-19T20:27:14.000Z",
  "title": "Observation of subdiffusion of a disordered interacting system",
  "authors": [
    "E. Lucioni",
    "B. Deissler",
    "L. Tanzi",
    "G. Roati",
    "M. Modugno",
    "M. Zaccanti",
    "M. Larcher",
    "F. Dalfovo",
    "M. Inguscio",
    "G. Modugno"
  ],
  "comment": "8 pages, to be published on Physical Review Letters",
  "journal": "Phys. Rev. Lett. 106, 230403 (2011)",
  "categories": [
    "cond-mat.dis-nn",
    "cond-mat.quant-gas",
    "quant-ph"
  ],
  "abstract": "We study the transport dynamics of matter-waves in the presence of disorder and nonlinearity. An atomic Bose-Einstein condensate that is localized in a quasiperiodic lattice in the absence of atom-atom interaction shows instead a slow expansion with a subdiffusive behavior when a controlled repulsive interaction is added. The measured features of the subdiffusion are compared to numerical simulations and a heuristic model. The observations confirm the nature of subdiffusion as interaction-assisted hopping between localized states and highlight a role of the spatial correlation of the disorder.",
  "revisions": [
    {
      "version": "v2",
      "updated": "2011-05-19T20:27:14.000Z"
    }
  ],
  "analyses": {
    "subjects": [
      "03.75.Lm",
      "05.60.-k"
    ],
    "keywords": [
      "disordered interacting system",
      "subdiffusion",
      "atomic bose-einstein condensate",
      "transport dynamics",
      "heuristic model"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "publisher": "APS",
      "journal": "Physical Review Letters",
      "doi": "10.1103/PhysRevLett.106.230403",
      "year": 2011,
      "month": "Jun",
      "volume": 106,
      "number": 23,
      "pages": 230403
    },
    "note": {
      "typesetting": "TeX",
      "pages": 8,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "adsabs": "2011PhRvL.106w0403L"
    }
  }
}