{
  "annotation_id": "3413cea6-4bad-4a7a-929b-b71eb3b55b6e",
  "date_created": "2026-03-02T18:01:56.266000Z",
  "date_modified": "2026-03-02T18:01:56.266000Z",
  "file_hash": "ffc8d410f76964a6edc1fc7f41fddb8771ff677263f86a992dd189a8546f86d8",
  "private": false,
  "record": {
    "abstract": "Using a spontaneous parametric-downconversion source of photon pairs, we are\nworking towards the creation of arbitrary 2-qubit quantum states with high\nfidelity. Currently, all physically allowable combinations of polarization\nentanglement and mixture can be produced, including maximally-entangled mixed\nstates. The states are experimentally measured and refined via\ncomputer-automated quantum-state tomography, and this system has also been used\nto perform single-qubit and ancilla-assisted quantum process tomography.",
    "arxiv_id": "quant-ph/0303040",
    "authors": [
      "Paul Kwiat",
      "Joe Altepeter",
      "David Branning",
      "Evan Jeffrey",
      "Nicholas Peters",
      "Tzu-Chieh Wei"
    ],
    "categories": [
      "quant-ph"
    ],
    "title": "Taming Entanglement",
    "url": "https://arxiv.org/abs/quant-ph/0303040"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "dc1bc533-0079-46bb-8879-f5439fd25d7e",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}