{
  "annotation_id": "e284b158-c8c6-4d2f-9dd7-30c30b7335e9",
  "date_created": "2026-03-02T18:01:53.064000Z",
  "date_modified": "2026-03-02T18:01:53.064000Z",
  "file_hash": "71253687ce18b47d1cc9deed79d67d2c3972324e06f7ae068e96b6efe425d15c",
  "private": false,
  "record": {
    "abstract": "We discuss properties of entanglement measures called I-concurrence and\ntangle. For a bipartite pure state, I-concurrence and tangle are simply related\nto the purity of the marginal density operators. The I-concurrence (tangle) of\na bipartite mixed state is the minimum average I-concurrence (tangle) of\nensemble decompositions of pure states of the joint density operator. Terhal\nand Vollbrecht [Phys. Rev. Lett. 85, 2625 (2000)] have given an explicit\nformula for the entanglement of formation of isotropic states in arbitrary\ndimensions. We use their formalism to derive comparable expressions for the\nI-concurrence and tangle of isotropic states.",
    "arxiv_id": "quant-ph/0208002",
    "authors": [
      "Pranaw Rungta",
      "Carlton M. Caves"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1103/PhysRevA.67.012307",
    "title": "I-concurrence and tangle for isotropic states",
    "url": "https://arxiv.org/abs/quant-ph/0208002"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "4422f6aa-0e31-4ee2-83fa-5878c501db96",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}