{
  "annotation_id": "5cab8912-91c4-425f-9970-0e092794faec",
  "date_created": "2026-03-02T18:01:49.158000Z",
  "date_modified": "2026-03-02T18:01:49.158000Z",
  "file_hash": "729a80f7cab73056b8e0d768a6e18a8cac20fecb93a7d18f7215426bbcc95a0c",
  "private": false,
  "record": {
    "abstract": "In this paper, we present a general formula for obtaining the reduced density\nopeator for any biparticle pure entangled state. Using this formula, we derive,\nin a compact form, the explicit formula of the entanglement for any bipartical\npure entangled Gaussian state. In the case of Gaussian states, the criteria of\nseparabelity can be naturely obtained by the formula. For non-Gaussian states,\nwe also show the usefulness of the method presented in this paper.",
    "arxiv_id": "quant-ph/0204098",
    "authors": [
      "Huai-XIn Lu",
      "Zeng-Bing Chen",
      "Jian-Wei Pan",
      "Yong-De Zhang"
    ],
    "categories": [
      "quant-ph"
    ],
    "title": "Calculation of entanglement for continious variable states",
    "url": "https://arxiv.org/abs/quant-ph/0204098"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "c056d769-a97c-46f1-8a36-1b551d023a0a",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}