{
  "annotation_id": "5a709343-b1ab-4126-bea2-bdb59213a37b",
  "date_created": "2026-03-02T18:02:47.982000Z",
  "date_modified": "2026-03-02T18:02:47.982000Z",
  "file_hash": "cdc16cea7b6e692f11aacc1ff6bb753b9f022e53798559a66a6474b026cd50c8",
  "private": false,
  "record": {
    "abstract": "We describe an entanglement purification protocol to generate maximally\nentangled states with high efficiencies from two-mode squeezed states or from\nmixed Gaussian continuous entangled states. The protocol relies on a local\nquantum non-demolition measurement of the total excitation number of several\ncontinuous variable entangled pairs. We propose an optical scheme to do this\nkind of measurement using cavity enhanced cross--Kerr interactions.",
    "arxiv_id": "quant-ph/9912017",
    "authors": [
      "Lu-Ming Duan",
      "G. Giedke",
      "J. I. Cirac",
      "P. Zoller"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1103/PhysRevLett.84.4002",
    "journal_ref": "Phys. Rev. Lett. 84, 4002 (2000)",
    "title": "Entanglement purification of Gaussian continuous variable quantum states",
    "url": "https://arxiv.org/abs/quant-ph/9912017"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "69acf855-2f63-414c-982d-3143680c8b06",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}