{
  "annotation_id": "132be1be-2f5d-4749-817e-fdb6abce3f3c",
  "date_created": "2026-03-02T18:02:34.731000Z",
  "date_modified": "2026-03-02T18:02:34.731000Z",
  "file_hash": "8e5fc2d79ee47491093fcaf3557ea0194f7ad5bdfd5319b04180e2c5316ab92e",
  "private": false,
  "record": {
    "abstract": "The coherent bit (cobit) channel is a resource intermediate between classical\nand quantum communication. It produces coherent versions of teleportation and\nsuperdense coding. We extend the cobit channel to continuous variables by\nproviding a definition of the coherent nat (conat) channel. We construct\nseveral coherent protocols that use both a position-quadrature and a\nmomentum-quadrature conat channel with finite squeezing. Finally, we show that\nthe quality of squeezing diminishes through successive compositions of coherent\nteleportation and superdense coding.",
    "arxiv_id": "quant-ph/0612170",
    "authors": [
      "Mark M. Wilde",
      "Hari Krovi",
      "Todd A. Brun"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1103/PhysRevA.75.060303",
    "journal_ref": "Physical Review A 75, 060303(R) (2007)",
    "title": "Coherent Communication with Continuous Quantum Variables",
    "url": "https://arxiv.org/abs/quant-ph/0612170"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "5c3b0b8a-2d4e-4f60-a9c7-0a98062b500f",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}