{
  "annotation_id": "0f0e11d1-17a9-4fd0-a380-8f1714554261",
  "date_created": "2026-03-02T18:00:11.710000Z",
  "date_modified": "2026-03-02T18:00:11.710000Z",
  "file_hash": "d688aa9e3e3d896d18a19ecdad85adc7440ec30a366a71bf0d4ee658387736ab",
  "private": false,
  "record": {
    "abstract": "The first excitation energy in the two-level pairing model is investigated in\nterms of the equilibrium and the small fluctuation around it. The basic idea is\nan extension of results presented in a previous paper by the present authors.\nIn this investigation, the result obtained in the previous paper plays a\ncentral role: At the limit of the weak and the strong interaction strength, the\nresults are in good agreement with the exact one. The former and the latter are\ncalculated in the framework of the $su(2)\\otimes su(1,1)$- and the\n$su(2)\\otimes su(2)$-coherent state, respectively. On the basis of the above\nconclusion, the intermediate region for the interaction strength is described\nin terms of the idea of the interpolation and it is shown that the agreement of\nthe result with the exact one is quite good.",
    "arxiv_id": "nucl-th/0701019",
    "authors": [
      "Y. Tsue",
      "C. Providencia",
      "J. da Providencia",
      "M. Yamamura"
    ],
    "categories": [
      "nucl-th"
    ],
    "doi": "10.1143/PTP.117.853",
    "journal_ref": "Prog.Theor.Phys.117:853-860,2007",
    "title": "A Refined Numerical Result on the First Excitation Energy in the   Two-Level Pairing Model",
    "url": "https://arxiv.org/abs/nucl-th/0701019"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "a255ec40-4451-4fe9-9b9c-5e4b695123bd",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}