{
  "annotation_id": "56b4b25d-8f34-497c-bd02-fc2077b57b6b",
  "date_created": "2026-03-02T18:02:16.992000Z",
  "date_modified": "2026-03-02T18:02:16.992000Z",
  "file_hash": "e0b69141a31eece497e1e70a1c9f90c2209cd40c4f46626a998187be970e83f3",
  "private": false,
  "record": {
    "abstract": "We derive an analytical lower bound for the concurrence of a bipartite\nquantum state in arbitrary dimension. A functional relation is established\nrelating concurrence, the Peres-Horodecki criterion and the realignment\ncriterion. We demonstrate that our bound is exact for some mixed quantum\nstates. The significance of our method is illustrated by giving a quantitative\nevaluation of entanglement for many bound entangled states, some of which fail\nto be identified by the usual concurrence estimation method.",
    "arxiv_id": "quant-ph/0506136",
    "authors": [
      "Kai Chen",
      "Sergio Albeverio",
      "Shao-Ming Fei"
    ],
    "categories": [
      "quant-ph",
      "cond-mat.mes-hall"
    ],
    "doi": "10.1103/PhysRevLett.95.040504",
    "journal_ref": "Phys. Rev. Lett. 95, 040504 (2005)",
    "title": "Concurrence of arbitrary dimensional bipartite quantum states",
    "url": "https://arxiv.org/abs/quant-ph/0506136"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "9fc1d119-0c5a-4676-91e5-22ab76bed3b3",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}