{
  "annotation_id": "d9138af8-4dd1-4527-831c-57c7f7c8974c",
  "date_created": "2026-03-02T18:01:42.194000Z",
  "date_modified": "2026-03-02T18:01:42.194000Z",
  "file_hash": "54faf90746941566ccadca3e74809e83e881fca418ebf851aa6b31cbaed86c5a",
  "private": false,
  "record": {
    "abstract": "We discuss entanglement of multiparticle quantum systems. We propose a\npotential measure of a type of entanglement of pure states of n qubits, the\nn-tangle. For a system of two qubits the n-tangle is equal to the square of the\nconcurrence, and for systems of three qubits it is equal to the \u0027\u0027residual\nentanglement\u0027\u0027. We show that the n -tangle, is also equal to the generalization\nof concurrence squared for even n, and use this fact to prove that the n-tangle\nis an entanglement monotone. However, the n-tangle is undefined for odd n\u003e3.\nFinally we propose a measure related to the n-tangle for mixed state systems of\nn qubits, and find an analytical formula for this measure for even n.",
    "arxiv_id": "quant-ph/0010052",
    "authors": [
      "Alexander Wong",
      "Nelson Christensen"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1103/PhysRevA.63.044301",
    "journal_ref": "Physical Review A, Vol. 63, 044301 (2001)",
    "title": "A potential multipartide entanglement measure",
    "url": "https://arxiv.org/abs/quant-ph/0010052"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "54d94fef-fdf7-4afb-94db-e0fb072a8f36",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}