{
  "annotation_id": "0dee3995-2a0f-4e3b-9c10-199baf63ed1e",
  "date_created": "2026-03-02T18:02:20.698000Z",
  "date_modified": "2026-03-02T18:02:20.698000Z",
  "file_hash": "96868849a7f72782622a5a7cca76e52b1d580ab60b8df8c71a326e91596056e3",
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  "record": {
    "abstract": "We propose a scheme for optimal Gaussian purification of coherent states from\nseveral imperfect copies. The proposal is experimentally demonstrated for the\ncase of two copies of a coherent state sent through independent noisy channels.\nOur purification protocol relies on only linear optics and an ancilla vacuum\nstate, rendering this approach an interesting alternative to the more complex\nprotocols of entanglement distillation and quantum error correction.",
    "arxiv_id": "quant-ph/0508178",
    "authors": [
      "Ulrik L. Andersen",
      "Radim Filip",
      "Jaromir Fiurasek",
      "Vincent Josse",
      "Gerd Leuchs"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1103/PhysRevA.72.060301",
    "journal_ref": "Phys. Rev. A 72, 060301 (2005)",
    "title": "Experimental purification of coherent states",
    "url": "https://arxiv.org/abs/quant-ph/0508178"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "4e8036b7-917e-4210-967f-765f5b86d116",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}