{
  "annotation_id": "86457ad6-a2f8-4e42-9320-7c6704324bad",
  "date_created": "2026-03-02T18:02:06.503000Z",
  "date_modified": "2026-03-02T18:02:06.503000Z",
  "file_hash": "cf80c64db2a9e1c9b9c5095a67b69bb07d767eacb2ad75066c6437b01e46c79c",
  "private": false,
  "record": {
    "abstract": "We discuss a continuous variables method of quantum key distribution\nemploying strongly polarized coherent states of light. The key encoding is\nperformed using the variables known as Stokes parameters, rather than the field\nquadratures. Their quantum counterpart, the Stokes operators $\\hat{S}_i$\n(i=1,2,3), constitute a set of non-commuting operators, being the precision of\nsimultaneous measurements of a pair of them limited by an uncertainty-like\nrelation. Alice transmits a conveniently modulated two-mode coherent state, and\nBob randomly measures one of the Stokes parameters of the incoming beam. After\nperforming reconciliation and privacy amplification procedures, it is possible\nto distill a secret common key. We also consider a non-ideal situation, in\nwhich coherent states with thermal noise, instead of pure coherent states, are\nused for encoding.",
    "arxiv_id": "quant-ph/0403076",
    "authors": [
      "A. Vidiella-Barranco",
      "L. F. M. Borelli"
    ],
    "categories": [
      "quant-ph",
      "cs.CR",
      "physics.optics"
    ],
    "doi": "10.1142/S0217979206033929",
    "journal_ref": "Int. J. Mod. Phys. B., 20, 1287 (2006)",
    "title": "Quantum key distribution using polarized coherent states",
    "url": "https://arxiv.org/abs/quant-ph/0403076"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "1ba2bd4a-5ff4-4aaa-89ab-26fa4e51d52a",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}