{
  "annotation_id": "37bc33d8-cc7e-42d8-b88a-b48a7f1e7969",
  "date_created": "2026-03-02T18:02:34.425000Z",
  "date_modified": "2026-03-02T18:02:34.425000Z",
  "file_hash": "6a0da37cb3c673576cc7da4540c43b6d8be67d1a0ccc2c6170c497c62527e7ff",
  "private": false,
  "record": {
    "abstract": "A bipartite quantum state (for two systems in any dimensions) can be\ndecomposed as a superposition of many components. For a superposition of more\nthan two components we prove that there is a bound of the entanglement of the\nsuperposition state which can be expressed according to entanglements of its\ncomponent states. Especially, if the component states are mutually\nbi-orthogonal, the entanglement of the superposition state can be exactly given\nin terms of the entanglements of the states being superposed.",
    "arxiv_id": "quant-ph/0701188",
    "authors": [
      "Yang Xiang",
      "Shi-Jie Xiong",
      "Fang-Yu Hong"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1140/epjd/e2008-00022-6",
    "title": "The Bound of Entanglement of Superpositions with More Than Two   Components",
    "url": "https://arxiv.org/abs/quant-ph/0701188"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "409df548-e8f6-4547-b3a8-1a8ba926132b",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}