{
  "annotation_id": "2f0c2dfc-04fc-400f-8781-3bcb7b4eec70",
  "date_created": "2026-03-02T18:02:17.100000Z",
  "date_modified": "2026-03-02T18:02:17.100000Z",
  "file_hash": "d4e60e4809e520145f82c706275874c73255f6a4d980bab08f06a82231bdea65",
  "private": false,
  "record": {
    "abstract": "We calculate the amount of polarization-entanglement induced by two-photon\ninterference at a lossless beam splitter. Entanglement and its witness are\nquantified respectively by concurrence and the Bell-CHSH parameter. In the\npresence of a Mandel dip, the interplay of two kinds of which-path information\n-- temporal and polarization -- gives rise to the existence of entangled\npolarization-states that cannot violate the Bell-CHSH inequality.",
    "arxiv_id": "quant-ph/0503204",
    "authors": [
      "J. L. van Velsen"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1103/PhysRevA.72.012334",
    "journal_ref": "Phys. Rev. A 72, 012334 (2005)",
    "title": "Entangling ability of a beam splitter in the presence of temporal   which-path information",
    "url": "https://arxiv.org/abs/quant-ph/0503204"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "255175d2-ad11-4963-b8e8-f5e262b355d6",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}