{
  "annotation_id": "bf6d18c3-dbd6-4212-b656-c4e978a0b1ae",
  "date_created": "2026-03-02T18:02:19.901000Z",
  "date_modified": "2026-03-02T18:02:19.901000Z",
  "file_hash": "f12bbfd355748388a318a5052e5aab8149d2003cf456d1930d896714110f9a75",
  "private": false,
  "record": {
    "abstract": "The main achievements of Pseudo-Hermitian Quantum Mechanics and its\ndistinction with the indefinite-metric quantum theories are reviewed. The issue\nof the non-uniqueness of the metric operator and its consequences for defining\nthe observables are discussed. A systematic perturbative expression for the\nmost general metric operator is offered and its application for a toy model is\noutlined.",
    "arxiv_id": "quant-ph/0508214",
    "authors": [
      "Ali Mostafazadeh"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1007/s10582-005-0121-z",
    "title": "Pseudo-Hermiticity, PT-symmetry, and the Metric Operator",
    "url": "https://arxiv.org/abs/quant-ph/0508214"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "ae1682cd-f9ea-46c5-9104-8b58d6f3e04c",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}