{
  "annotation_id": "05ec76ba-2c9d-456b-897e-aa1bc0bfff83",
  "date_created": "2026-03-02T18:02:31.143000Z",
  "date_modified": "2026-03-02T18:02:31.143000Z",
  "file_hash": "49f4a44b2bd67aecb7b82de6c132fe1177e1221ac2d09ff88fce28ae16479404",
  "private": false,
  "record": {
    "abstract": "We compare the principles and experimental results of two different QPSK\nsignal detection configurations, photon counting and super homodyning, for\napplications in fiber-optic Quantum Key Distribution (QKD) systems operating at\ntelecom wavelength, using the BB84 protocol.",
    "arxiv_id": "quant-ph/0611123",
    "authors": [
      "Q. XU",
      "M. B. Costa e Silva",
      "S. Agnolini",
      "P. Gallion",
      "F. J. Mendieta"
    ],
    "categories": [
      "quant-ph"
    ],
    "journal_ref": "EOS 2006 Annual meeting Proceeding",
    "title": "Photon Counting and Super Homodyne Detection of Weak QPSK Signals for   Quantum Key Distribution",
    "url": "https://arxiv.org/abs/quant-ph/0611123"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "b728ff97-37bf-422a-878f-e848726932ad",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}