{
  "annotation_id": "307beb11-2e6b-40d5-a098-654b341a8a58",
  "date_created": "2026-03-02T18:01:42.484000Z",
  "date_modified": "2026-03-02T18:01:42.484000Z",
  "file_hash": "d5e6709b3eda16f73e5c020892a44c55dfc5969825f5430152002da3e0b1cb44",
  "private": false,
  "record": {
    "abstract": "We report on the generation of a continuous variable Einstein-Podolsky-Rosen\n(EPR) entanglement using an optical fibre interferometer. The Kerr nonlinearity\nin the fibre is exploited for the generation of two independent squeezed beams.\nThese interfere at a beam splitter and EPR entanglement is obtained between the\noutput beams. The correlation of the amplitude (phase) quadratures are measured\nto be 4.0+-0.2 (4.0+-0.4) dB below the quantum noise limit. The sum criterion\nfor these squeezing variances 0.80+-0.03 \u003c 2 verifies the nonseparability of\nthe state. The product of the inferred uncertainties for one beam 0.64+-0.08 is\nwell below the EPR limit of unity.",
    "arxiv_id": "quant-ph/0103002",
    "authors": [
      "Ch. Silberhorn",
      "P. K. Lam",
      "O. Weiss",
      "F. Koenig",
      "N. Korolkova",
      "G. Leuchs"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1103/PhysRevLett.86.4267",
    "journal_ref": "Phys. Rev. Lett. 86, 4267 (2001)",
    "title": "Generation of Continuous Variable Einstein-Podolsky-Rosen Entanglement   via the Kerr Nonlinearity in an Optical Fibre",
    "url": "https://arxiv.org/abs/quant-ph/0103002"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "fc798566-46e0-41a0-8b7c-c0c846721633",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}