{
  "annotation_id": "bafa59bb-b684-46d0-89b0-6ffcf4b64e2f",
  "date_created": "2026-03-02T18:02:38.119000Z",
  "date_modified": "2026-03-02T18:02:38.119000Z",
  "file_hash": "2626ba4a1aaec970e85dc569aba13e1808076d8b91f5c927dff215401ec5171f",
  "private": false,
  "record": {
    "abstract": "We briefly tackle the following concepts in the Demkov-Ostrovsky (DO)\nnodeless sector: (i) orbital impedance, (ii) orbital capacity, (iii) closeness\nto reflectionlessness. Moreover, using previous supersymmetric results for the\nDO problem, a strictly isospectral effect in the DO orbital impedances is\ndiscussed and explicit plots are displayed for the Maxwell fisheye lens. This\neffect, though rather small, is general, that is, it may apply to any focusing\nstructure.",
    "arxiv_id": "quant-ph/9610029",
    "authors": [
      "H. C. Rosu",
      "J. Socorro"
    ],
    "categories": [
      "quant-ph"
    ],
    "journal_ref": "Nuovo Cimento B 113 (February 1998) 267-270",
    "title": "Note on the Demkov-Ostrovsky nodeless sector",
    "url": "https://arxiv.org/abs/quant-ph/9610029"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "5c69cc1b-28d4-40a4-98fe-e8c5532cc27b",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}