{
  "id": "1203.4540",
  "version": "v2",
  "published": "2012-03-20T18:57:35.000Z",
  "updated": "2012-07-26T02:38:54.000Z",
  "title": "Interaction-induced impeding of decoherence and anomalous diffusion",
  "authors": [
    "Dario Poletti",
    "Jean-Sebastien Bernier",
    "Antoine Georges",
    "Corinna Kollath"
  ],
  "comment": "5 pages, 3 figures",
  "journal": "Phys. Rev. Lett. 109, 045302 (2012)",
  "doi": "10.1103/PhysRevLett.109.045302",
  "categories": [
    "quant-ph",
    "cond-mat.quant-gas"
  ],
  "abstract": "We study how the interplay of dissipation and interactions affects the dynamics of a bosonic many-body quantum system. In the presence of both dissipation and strongly repulsive interactions, observables such as the coherence and the compressibility display three dynamical regimes: an initial exponential variation followed by a power-law regime and finally a slow exponential convergence to their asymptotic values corresponding to the infinite temperature state. These very long-time scales arise as dissipation forces the population of states disfavored by interactions. The long-time, strong coupling dynamics are understood by performing a mapping onto a classical diffusion process displaying non-Brownian behavior. While both dissipation and strong interactions tend to suppress coherence when acting separately, we find that strong interaction impedes the decoherence process generated by the dissipation.",
  "revisions": [
    {
      "version": "v2",
      "updated": "2012-07-26T02:38:54.000Z"
    }
  ],
  "analyses": {
    "subjects": [
      "67.85.De",
      "03.65.Yz",
      "03.75.Gg",
      "67.85.Hj"
    ],
    "keywords": [
      "anomalous diffusion",
      "interaction-induced impeding",
      "dissipation",
      "decoherence",
      "bosonic many-body quantum system"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "publisher": "APS",
      "journal": "Physical Review Letters",
      "year": 2012,
      "month": "Jul",
      "volume": 109,
      "number": 4,
      "pages": "045302"
    },
    "note": {
      "typesetting": "TeX",
      "pages": 5,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "adsabs": "2012PhRvL.109d5302P"
    }
  }
}