{
  "annotation_id": "a4b593e2-121a-46c6-9ab9-3612ee94e3e2",
  "date_created": "2026-03-02T18:02:27.396000Z",
  "date_modified": "2026-03-02T18:02:27.396000Z",
  "file_hash": "a3fc1b00777d8b342c9c5e9f1a9f34cfad1209af972122f1e17b18a62b7ce53e",
  "private": false,
  "record": {
    "abstract": "We solved numerically the implicit, trascendental equation that defines the\neigenenergy surface of a degenerating isolated doublet of unbound states in the\nsimple but illustrative case of the scattering of a beam of particles by a\ndouble barrier potential. Unfolding the degeneracy point with the help of a\ncontact equivalent approximant, crossings and anticrossings of energies and\nwidths, as well as the changes of identity of the poles of the S-matrix are\nexplained in terms of sections of the eigenenergy surfaces.",
    "arxiv_id": "quant-ph/0606239",
    "authors": [
      "E. Hernandez",
      "A. Jauregui",
      "A. Mondragon"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1088/0305-4470/39/32/S11",
    "title": "Non-Hermitian degeneracy of two unbound states",
    "url": "https://arxiv.org/abs/quant-ph/0606239"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "2965d91e-b5ba-4d94-b6d2-52ecaf8d94c6",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}