{
  "annotation_id": "609cf272-90e4-48d9-8454-ea141dc695ca",
  "date_created": "2026-03-02T18:02:13.512000Z",
  "date_modified": "2026-03-02T18:02:13.512000Z",
  "file_hash": "3410724282cb62322d3310be9bb03455ca67a4856e80b41de4a0a2abb81a520c",
  "private": false,
  "record": {
    "abstract": "The Dirac equation for an electron in two spatial dimensions in the Coulomb\nand homogeneous magnetic fields is a physical example of quasi-exactly solvable\nsystems. This model, however, does not belong to the classes based on the\nalgebra $sl(2)$ which underlies most one-dimensional and effectively\none-dimensional quasi-exactly solvable systems. In this paper we demonstrate\nthat the quasi-exactly solvable differential equation possesses a hidden\n$osp(2,2)$ superalgebra.",
    "arxiv_id": "quant-ph/0501035",
    "authors": [
      "Chun-Ming Chiang",
      "Choon-Lin Ho"
    ],
    "categories": [
      "quant-ph",
      "math-ph",
      "math.MP",
      "nlin.SI"
    ],
    "doi": "10.1142/S0217732305016452",
    "journal_ref": "Mod. Phys. Lett. A 20 (2005) 673-679.",
    "title": "Quasi-exact Solvability of Planar Dirac Electron in Coulomb and Magnetic   Fields",
    "url": "https://arxiv.org/abs/quant-ph/0501035"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "516e3c82-2495-4128-9b1d-21c985e56aee",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}