{
  "annotation_id": "a25e33d9-2958-40b2-9aae-53dc6c694861",
  "date_created": "2026-03-02T18:01:52.570000Z",
  "date_modified": "2026-03-02T18:01:52.570000Z",
  "file_hash": "416770b1b5e546a1eb4f19aa6d21054d8a9f0bbaf36a2112349b21b47e184bf6",
  "private": false,
  "record": {
    "abstract": "A necessary and sufficient condition in order that a (diagonalizable)\npseudohermitian operator admits an antilinear symmetry T such that T^{2}=-1 is\nproven. This result can be used as a quick test on the T-invariance properties\nof pseudohermitian Hamiltonians, and such test is indeed applied, as an\nexample, to the Mashhoon-Papini Hamiltonian.",
    "arxiv_id": "quant-ph/0207163",
    "authors": [
      "G. Scolarici",
      "L. Solombrino"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1016/S0375-9601(02)01267-7",
    "title": "Pseudohermitian Hamiltonians, time-reversal invariance and Kramers   degeneracy",
    "url": "https://arxiv.org/abs/quant-ph/0207163"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "6739f51f-1597-4091-9399-75ba1edfb9b6",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}