{
  "id": "2003.00698",
  "version": "v1",
  "published": "2020-03-02T07:35:51.000Z",
  "updated": "2020-03-02T07:35:51.000Z",
  "title": "Multifractality of correlated two-particle bound states in quasiperiodic chains",
  "authors": [
    "Diana Thongjaomayum",
    "Sergej Flach",
    "Alexei Andreanov"
  ],
  "comment": "7 pages, 8 figures",
  "categories": [
    "cond-mat.dis-nn"
  ],
  "abstract": "We consider the quasiperiodic Aubry-Andr\\'e chain in the insulating regime with localised single-particle states. Adding local interaction leads to the emergence of extended correlated two-particle bound states. We analyse the nature of these states including their multifractality properties. We use a projected Green function method to compute numerically participation numbers of eigenstates and analyse their dependence on the energy and the system size. We then perform a scaling analysis. We observe multifractality of correlated extended two-particle bound states, which we confirm independently through exact diagonalisation.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2020-03-02T07:35:51.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "quasiperiodic chains",
      "extended correlated two-particle bound states",
      "projected green function method",
      "correlated extended two-particle bound states",
      "quasiperiodic aubry-andre chain"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 7,
      "language": "en",
      "license": "arXiv",
      "status": "editable"
    }
  }
}