{
  "annotation_id": "8a4bf8df-48bf-4479-9732-646917952469",
  "date_created": "2026-03-02T18:02:30.917000Z",
  "date_modified": "2026-03-02T18:02:30.917000Z",
  "file_hash": "cf93e87306fb2b3dffb4a111af11b453b90aabbe689a8f04dc82f725679927d9",
  "private": false,
  "record": {
    "abstract": "We present a scheme for simulating the quantum network of quantum estimation\nproposed by A. K. Ekert et al. [Phys. Rev. Lett. 88, 217901 (2002)]. We\nexperimentally implement the scheme with linear optical elements. We perform\noverlap measurements of two single-qubit states and entanglement-witness\nmeasurements of some two-qubit states. In addition, it can also be used for\nentanglement quantification for some kinds of states. From the other\nperspective, we physically realize the positive but not completely positive\nmap, transposition.",
    "arxiv_id": "quant-ph/0607189",
    "authors": [
      "Zhi-Wei Wang",
      "Jian Li",
      "Yun-Feng Huang",
      "Yong-Sheng Zhang",
      "Xi-Feng Ren",
      "Pei Zhang",
      "Guang-Can Guo"
    ],
    "categories": [
      "quant-ph"
    ],
    "title": "Linear Optical Implemention of a Quantum Network for Quantum Estimation",
    "url": "https://arxiv.org/abs/quant-ph/0607189"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "4eda4bf7-e912-4a1d-ae4d-8e4facb2be0b",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}