{
  "annotation_id": "84705a70-6da5-4e42-9c7a-2ada239c5f9a",
  "date_created": "2026-03-02T18:02:31.160000Z",
  "date_modified": "2026-03-02T18:02:31.160000Z",
  "file_hash": "8490061a4a7df6a67639fdf024c51cff955ee48cee14b152d52063a469966ef0",
  "private": false,
  "record": {
    "abstract": "The cluster states and Greenberger-Horne-Zeilinger (GHZ) states are two\ndifferent types of multipartite quantum entangled states. We present the first\nexperimental results generating continuous variable quadripartite cluster and\nGHZ entangled states of electromagnetic fields. Utilizing four two-mode\nsqueezed states of light and linearly optical transformations, the two types of\nentangled states for amplitude and phase quadratures of light are\nexperimentally produced. The combinations of the measured quadrature variances\nprove the full inseparability of the generated four subsystems. The presented\nexperimental schemes show that the multipartite entanglement of continuous\nvariables can be deterministically generated with the relatively simple\nimplementation.",
    "arxiv_id": "quant-ph/0608187",
    "authors": [
      "Xiaolong Su",
      "Aihong Tan",
      "Xiaojun Jia*",
      "Jing Zhang",
      "Changde Xie",
      "Kunchi Peng"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1103/PhysRevLett.98.070502",
    "journal_ref": "Phys. Rev. Lett. 98, 070502(2007)",
    "title": "Experimental Preparation of Quadripartite Cluster and GHZ Entangled   States for Continuous Variables",
    "url": "https://arxiv.org/abs/quant-ph/0608187"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "b935843f-410c-4409-81b8-ee52692587be",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}