{
  "annotation_id": "148c4365-1ca7-4d78-a445-fe00a3c8a3bb",
  "date_created": "2026-03-02T18:02:26.464000Z",
  "date_modified": "2026-03-02T18:02:26.464000Z",
  "file_hash": "890f43e8b6e62b9972c9e20cbbbd0a6eb2401878506b60cede565849adebed90",
  "private": false,
  "record": {
    "abstract": "We show that, for $N$ parallel input states, an anti-linear map with respect\nto a specific basis is essentially a classical operator. We also consider the\ninformation contained in phase-conjugate pairs $|\\phi \u003e |\\phi^*\u003e$, and prove\nthat there is more information about a quantum state encoded in phase-conjugate\npairs than in parallel pairs.",
    "arxiv_id": "quant-ph/0603237",
    "authors": [
      "Xiang-Fa Zhou",
      "Yong-Sheng Zhang",
      "Guang-Can Guo"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1103/PhysRevA.74.042324",
    "title": "State estimation from pair of conjugate qudits",
    "url": "https://arxiv.org/abs/quant-ph/0603237"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "fcde1060-283f-4275-8c52-ef34f52b5ce5",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}