{
  "annotation_id": "3c20fdd6-d55c-4815-afb5-ff71a6b42309",
  "date_created": "2026-03-02T18:02:41.231000Z",
  "date_modified": "2026-03-02T18:02:41.231000Z",
  "file_hash": "085e3e13272a985170625605cb319723263718d8934d8661ca49dccc6a65062f",
  "private": false,
  "record": {
    "abstract": "In this paper, we propose a complex approach to evaluate a function sum of\ntwo noncommuting non Hermitian operators. Then, it is proposed an explicit\nexpansion of the evolution operator in the case of the neutral K-meson system\nunder the influence of an external interaction. Then, the importance of the\nprocedure is pointed out to consider the algebraic expansion of the time\nevolution operator whenever the dynamics decouples the internal transitions and\nthe center of mass motion.",
    "arxiv_id": "quant-ph/9710028",
    "authors": [
      "D. Cocolicchio",
      "M. Viggiano"
    ],
    "categories": [
      "quant-ph"
    ],
    "journal_ref": "Int.J.Theor.Phys. 37 (1998) 2079-2089",
    "title": "The Spectral Theory of Perturbative Decays",
    "url": "https://arxiv.org/abs/quant-ph/9710028"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "aa19d9c2-cc74-4367-b003-c424e3e6ffde",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}