{
  "annotation_id": "32749711-409b-4f46-bcec-6755631ae38c",
  "date_created": "2026-03-02T18:02:00.220000Z",
  "date_modified": "2026-03-02T18:02:00.220000Z",
  "file_hash": "391a725cfc7b4aa55a022f8b422d25cf905e98e8a0b9a104ceece0e863984c3a",
  "private": false,
  "record": {
    "abstract": "We investigate continuous variable quantum teleportation. We discuss the\nmethods presently used to characterize teleportation in this regime, and\npropose an extension of the measures proposed by Grangier and Grosshans\n\\cite{Grangier00}, and Ralph and Lam \\cite{Ralph98}. This new measure, the gain\nnormalized conditional variance product $\\mathcal{M}$, turns out to be highly\nsignificant for continuous variable entanglement swapping procedures, which we\nexamine using a necessary and sufficient criterion for entanglement. We\nelaborate on our recent experimental continuous variable quantum teleportation\nresults \\cite{Bowen03}, demonstrating success over a wide range of\nteleportation gains. We analyze our results using fidelity; signal transfer,\nand the conditional variance product; and a measure derived in this paper, the\ngain normalized conditional variance product.",
    "arxiv_id": "quant-ph/0303179",
    "authors": [
      "W. P. Bowen",
      "N. Treps",
      "B. C. Buchler",
      "R. Schnabel",
      "T. C. Ralph",
      "T. Symul",
      "P. K. Lam"
    ],
    "categories": [
      "quant-ph"
    ],
    "journal_ref": "IEEE Journal of selected topics in quantum electronics, Vol. 9,\n  pp. 1519, 2003",
    "title": "Unity gain and non-unity gain quantum teleportation",
    "url": "https://arxiv.org/abs/quant-ph/0303179"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "660dbb86-63cf-4c0d-bda4-ae9bc82c85ae",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}