{
  "annotation_id": "aced4933-f8aa-47a0-9c4b-6decce9d96c5",
  "date_created": "2026-03-02T18:02:17.088000Z",
  "date_modified": "2026-03-02T18:02:17.088000Z",
  "file_hash": "df6461e2bf6fdec5750f3275a76cd7dbf0a421c6b08928d9e5b2520c397cb6b1",
  "private": false,
  "record": {
    "abstract": "We study if all maximally entangled states are pure through several\nentanglement monotones. In the bipartite case, we find that the same conditions\nwhich lead to the uniqueness of the entropy of entanglement as a measure of\nentanglement, exclude the existence of maximally mixed entangled states. In the\nmultipartite scenario, our conclusions allow us to generalize the idea of\nmonogamy of entanglement: we establish the \\textit{polygamy of entanglement},\nexpressing that if a general state is maximally entangled with respect to some\nkind of multipartite entanglement, then it is necessarily factorized of any\nother system.",
    "arxiv_id": "quant-ph/0505121",
    "authors": [
      "Daniel Cavalcanti",
      "Fernando G. S. L. Brandao",
      "Marcelo O. Terra Cunha"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1103/PhysRevA.72.040303",
    "journal_ref": "Phys. Rev. A 72, 040303(R) (2005)",
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "title": "Are all maximally entangled states pure?",
    "url": "https://arxiv.org/abs/quant-ph/0505121"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "1179cc87-2b39-46b6-9f64-35cbc89bf301",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}