{
  "annotation_id": "03b98835-d306-45b7-99a3-4223eb39f240",
  "date_created": "2026-03-02T18:02:20.239000Z",
  "date_modified": "2026-03-02T18:02:20.239000Z",
  "file_hash": "5e8f0c2c992d7a7118019f32ce515438b86e156dbb71c8212269784465234926",
  "private": false,
  "record": {
    "abstract": "We investigate the optimal tradeoff between information gained about an\nunknown coherent state and the state disturbance caused by the measurement\nprocess. We propose several optical schemes that can enable this task, and we\nimplement one of them, a scheme which relies on only linear optics and homodyne\ndetection. Experimentally we reach near optimal performance, limited only by\ndetection inefficiencies. In addition we show that such a scheme can be used to\nenhance the transmission fidelity of a class of noisy channels.",
    "arxiv_id": "quant-ph/0510195",
    "authors": [
      "Ulrik L. Andersen",
      "Metin Sabuncu",
      "Radim Filip",
      "Gerd Leuchs"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1103/PhysRevLett.96.020409",
    "journal_ref": "Phys. Rev. Lett. 96, 020409 (2006)",
    "title": "Experimental demonstration of coherent state estimation with minimal   disturbance",
    "url": "https://arxiv.org/abs/quant-ph/0510195"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "006bf418-5762-408d-961a-5303f431efe9",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}