{
  "annotation_id": "0cb6c4cc-4238-42aa-b299-6c15b37e0838",
  "date_created": "2026-03-02T18:01:56.391000Z",
  "date_modified": "2026-03-02T18:01:56.391000Z",
  "file_hash": "8b0a633bcd3c60ac9aab3d43ee773d9dffd9b6479c1ea100cff0c8057bc1f459",
  "private": false,
  "record": {
    "abstract": "Quantum entanglement is the quantum information processing resource. Thus it\nis of importance to understand how much of entanglement particular quantum\nstates have, and what kinds of laws entanglement and also transformation\nbetween entanglement states subject to. Therefore, it is essentialy important\nto use proper measures of entanglement which have nice properties. One of the\nmajor candidates of such measures is \"entanglement of formation\", and whether\nthis measurement is additive or not is an important open problem. We aim at\ncertain states so-called \"antisymmetric states\" for which the additivity are\nnot solved as far as we know, and show the additivity for two of them.\n  Keywords: quantum entanglement, entanglement of formation, additivity of\nentanglement measures, antisymmetric states.",
    "arxiv_id": "quant-ph/0301011",
    "authors": [
      "Toshiyuki Shimono"
    ],
    "categories": [
      "quant-ph"
    ],
    "journal_ref": "International Journal of Quantum Information 1(2), 259-268 (2003)",
    "title": "Additivity of Entanglement of Formation of Two Three-level-antisymmetric   States",
    "url": "https://arxiv.org/abs/quant-ph/0301011"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "a4fdb795-26b9-43f3-a44c-967b82d41756",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}