{
  "annotation_id": "4bdc8bd2-03d1-4833-8954-126f20f7fc2d",
  "date_created": "2026-03-02T18:01:53.166000Z",
  "date_modified": "2026-03-02T18:01:53.166000Z",
  "file_hash": "13fc4a78a5b102befccde7c13b45d88712062019101b9808ea3a119b83838178",
  "private": false,
  "record": {
    "abstract": "We consider the change of entanglement of formation $\\Delta E$ produced by\nthe Hadamard-CNOT circuit on a general (pure or mixed) state $\\rho$ describing\na system of two qubits. We study numerically the probabilities of obtaining\ndifferent values of $\\Delta E$, assuming that the initial state is randomly\ndistributed in the space of all states according to the product measure\nrecently introduced by Zyczkowski {\\it et al.} [Phys. Rev. A {\\bf 58} (1998)\n883].",
    "arxiv_id": "quant-ph/0210051",
    "authors": [
      "J. Batle",
      "M. Casas",
      "A. Plastino",
      "A. R. Plastino"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1016/S0378-4371(03)00466-7",
    "journal_ref": "Physica A 327, 140 (2003)",
    "title": "The statistics of the entanglement changes generated by the   Hadamard-CNOT quantum circuit",
    "url": "https://arxiv.org/abs/quant-ph/0210051"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "0dd76c8e-0386-4d80-ad18-7353769d2a99",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}