{
  "annotation_id": "12a4c06a-0cd4-49b0-87f1-3fd207a5061d",
  "date_created": "2026-03-02T18:02:23.714000Z",
  "date_modified": "2026-03-02T18:02:23.714000Z",
  "file_hash": "ac07811544124f7d3e2c4b4ebd939d984591182db34e381ef45387dc12ca3ba2",
  "private": false,
  "record": {
    "abstract": "Light fields can be amplified by measuring the field amplitude reflected at a\nbeam splitter of reflectivity R and adding a coherent amplitude proportional to\nthe measurement result to the transmitted field. By applying the quantum\noptical realization of this amplification scheme to single photon inputs, it is\npossible to clone the polarization states of photons. We show that optimal\ncloning of single photon polarization is possible when the gain factor of the\namplification is equal to the inverse squareroot of 1-R.",
    "arxiv_id": "quant-ph/0512002",
    "authors": [
      "Holger F. Hofmann",
      "Toshiki Ide"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1088/1367-2630/8/8/130",
    "journal_ref": "New J. Phys. 8 (2006) 130",
    "title": "Optimal cloning of single photon polarization by coherent feedback of   beam splitter losses",
    "url": "https://arxiv.org/abs/quant-ph/0512002"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "259827b0-f764-454d-b228-3cb52dbf3161",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}