{
  "annotation_id": "5efbb6b9-da5b-4cbc-a0bf-f2e903f6a3d3",
  "date_created": "2026-03-02T18:02:37.952000Z",
  "date_modified": "2026-03-02T18:02:37.952000Z",
  "file_hash": "4ecd7d3eefb3a01b33f01e034da8b9aab00a471e2605f74ee57e43c537a4b962",
  "private": false,
  "record": {
    "abstract": "A field state containing photons propagating in different directions has a\nnon vanishing mass which is a quantum observable. We interpret the shift of\nthis mass under transformations to accelerated frames as defining space-time\nobservables canonically conjugated to energy-momentum observables. Shifts of\nquantum observables differ from the predictions of classical relativity theory\nin the presence of a non vanishing spin. In particular, quantum redshift of\nenergy-momentum is affected by spin. Shifts of position and energy-momentum\nobservables however obey simple universal rules derived from invariance of\ncanonical commutators.",
    "arxiv_id": "quant-ph/9610004",
    "authors": [
      "Marc-Thierry Jaekel",
      "Serge Reynaud"
    ],
    "categories": [
      "quant-ph",
      "gr-qc"
    ],
    "doi": "10.1209/epl/i1997-00108-7",
    "journal_ref": "Europhys.Lett.38:1,1977",
    "title": "Mass as a Relativistic Quantum Observable",
    "url": "https://arxiv.org/abs/quant-ph/9610004"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "a3236518-a8db-4f59-9504-58457edf50a8",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}