{
  "annotation_id": "57368ee5-de21-439c-9d6f-a35c374b4882",
  "date_created": "2026-03-02T18:02:06.079000Z",
  "date_modified": "2026-03-02T18:02:06.079000Z",
  "file_hash": "71b3f9510e4b888af3457e0e6dead61065765f894446696dde1c4134e62a352c",
  "private": false,
  "record": {
    "abstract": "Quantum marking and quantum erasure are discussed for the neutral kaon\nsystem. Contrary to other two-level systems, strangeness and lifetime of a\nneutral kaon state can be alternatively measured via an \"active\" or a \"passive\"\nprocedure. This offers new quantum erasure possibilities. In particular, the\noperation of a quantum eraser in the \"delayed choice\" mode is clearly\nillustrated.",
    "arxiv_id": "quant-ph/0404086",
    "authors": [
      "A. Bramon",
      "G. Garbarino",
      "B. C. Hiesmayr"
    ],
    "categories": [
      "quant-ph",
      "hep-ph"
    ],
    "journal_ref": "\"Symmetries in Gravity and Field Theory\", ed. by V. Aldaya and J.\n  M. Cervero, Ediciones Universidad de Salamanca, Salamanca, 2004, p. 223",
    "title": "Passive Quantum Erasure for Neutral Kaons",
    "url": "https://arxiv.org/abs/quant-ph/0404086"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "d6a9e3a6-1515-43dd-be18-2e114561db5c",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}