{
  "annotation_id": "3b6156ff-ab74-4e16-a2b1-b9c0d4c3dd2a",
  "date_created": "2026-03-02T18:00:11.969000Z",
  "date_modified": "2026-03-02T18:00:11.969000Z",
  "file_hash": "efba40e8dddb04170f079a37f7702751f16794c9dd9bcd45c7d5cb5e34dd5da0",
  "private": false,
  "record": {
    "abstract": "In this work we present an extended version of the Friedrichs Model, which\nincludes fermion-boson couplings. The set of fermion bound states is coupled to\na boson field with discrete and continuous components. As a result of the\ncoupling some of the fermion states may become resonant states. This feature\nsuggests the existence of a formal link between the occurrence of Gamow\nResonant States in the boson sector, as predicted by the standard Friedrichs\nModel, with similar effects in the set of solutions of the fermion central\npotential (Gamow fermion resonances). The structure of the solutions of the\nmodel is discussed by using different approximations to the model space.\nRealistic couplings constants are used to calculate fermion resonances in a\nheavy mass nucleus.",
    "arxiv_id": "nucl-th/0703090",
    "authors": [
      "O. Civitarese",
      "M. Gadella"
    ],
    "categories": [
      "nucl-th"
    ],
    "doi": "10.1142/S0218301306004776",
    "journal_ref": "Int.J.Mod.Phys.E15:1273-1290,2006",
    "title": "The Friedrichs-Model with fermion-boson couplings",
    "url": "https://arxiv.org/abs/nucl-th/0703090"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "ee070a92-2653-4600-a4af-24db24817ef3",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}