{
  "annotation_id": "77295807-8b00-4cbd-8733-c0aa657c23e4",
  "date_created": "2026-03-02T18:02:23.681000Z",
  "date_modified": "2026-03-02T18:02:23.681000Z",
  "file_hash": "9efc1bd744b567445349dc9a2de118ea512d4a7b1c37aab1a560b07a53344e8b",
  "private": false,
  "record": {
    "abstract": "It has been recently pointed out by Caves, Fuchs, and Rungta that real\nquantum mechanics (that is, quantum mechanics defined over real vector spaces\nprovides an interesting foil theory whose study may shed some light on just\nwhich particular aspects of quantum entanglement are unique to standard quantum\ntheory, and which ones are more generic over other physical theories endowed\nwith this phenomenon. Following this work, we discuss some entanglement\nproperties of two-rebits systems, making a comparison with the basic properties\nof two-qubits systems, i.e., the ones described by standard complex quantum\nmechanics. We also discuss the use of quaternionic quantum mechanics as applied\nto the phenomenon of entanglement.",
    "arxiv_id": "quant-ph/0603060",
    "authors": [
      "J. Batle",
      "A. R. Plastino",
      "M. Casas",
      "A. Plastino"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1134/1.1576838",
    "journal_ref": "Optics and Spectroscopy 94, 700 (2003)",
    "title": "Understanding Quantum Entanglement: Qubits, Rebits and the Quaternionic   Approach",
    "url": "https://arxiv.org/abs/quant-ph/0603060"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "cbfba40e-7e03-41df-a88c-a52d02a6907b",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}