{
  "annotation_id": "153da78b-f53f-42f0-9eab-4f610cc81091",
  "date_created": "2026-03-02T18:02:23.682000Z",
  "date_modified": "2026-03-02T18:02:23.682000Z",
  "file_hash": "9daab4c5daaf204b4fd3691ee64692be85fb41cd6f386e0eaa9862cb47676efa",
  "private": false,
  "record": {
    "abstract": "In relativity, two simultaneous events at two different places are not\nsimultaneous for observers in different Lorentz frames. In the\nEinstein-Podolsky-Rosen experiment, two simultaneous measurements are taken at\ntwo different places. Would they still be simultaneous to observers in moving\nframes? It is a difficult question, but it is still possible to study this\nproblem in the microscopic world. In the hydrogen atom, the uncertainty can be\nconsidered to be entirely associated with the ground-state. However, is there\nan uncertainty associated with the time-separation variable between the proton\nand electron? This time-separation variable is a forgotten, if not hidden,\nvariable in the present form of quantum mechanics. The first step toward the\nsimultaneity problem is to study the role of this time-separation variable in\nthe Lorentz-covariant world. It is shown possible to study this problem using\nharmonic oscillators applicable to hadrons which are bound states of quarks. It\nis also possible to derive consequences that can be tested experimentally.",
    "arxiv_id": "quant-ph/0603045",
    "authors": [
      "Y. S. Kim",
      "Marilyn E. Noz"
    ],
    "categories": [
      "quant-ph",
      "gr-qc",
      "hep-th"
    ],
    "journal_ref": "American Institute of Physics 0-7354-0301/06, pages 168-178\n  (2006).",
    "title": "The Question of Simultaneity in Relativity and Quantum Mechanics",
    "url": "https://arxiv.org/abs/quant-ph/0603045"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "e082cd47-0f1a-4079-842b-333d6861cfbe",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}