{
  "annotation_id": "b1ab808c-7a86-49c3-a288-529373e50b77",
  "date_created": "2026-03-02T18:02:19.357000Z",
  "date_modified": "2026-03-02T18:02:19.357000Z",
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  "private": false,
  "record": {
    "abstract": "We show how to convert between partially coherent superpositions of a single\nphoton with the vacuum using linear optics and postselection based on homodyne\nmeasurements. We introduce a generalized quantum efficiency for such states and\nshow that any conversion that decreases this quantity is possible. We also\nprove that our scheme is optimal by showing that no linear optical scheme with\ngeneralized conditional measurements, and with one single-rail qubit input can\nimprove the generalized efficiency.",
    "arxiv_id": "quant-ph/0507216",
    "authors": [
      "Dominic W. Berry",
      "Alexander I. Lvovsky",
      "Barry C. Sanders"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1364/OL.31.000107",
    "journal_ref": "Optics Letters 31, 107 (2006)",
    "title": "Interconvertibility of single-rail optical qubits",
    "url": "https://arxiv.org/abs/quant-ph/0507216"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "e9a35297-4f6b-47d6-a292-c0c85628cdb1",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}