{
  "annotation_id": "f6bf6b2f-a9a9-40fd-beac-74be7a87ebac",
  "date_created": "2026-03-02T18:02:31.147000Z",
  "date_modified": "2026-03-02T18:02:31.147000Z",
  "file_hash": "303af6d12e53e25d2ea81a8ec12362b404611a6fd97bfb010391423a3fd38388",
  "private": false,
  "record": {
    "abstract": "In quantum information theory, it is well known that the tripartite\nentanglement of three qubits is described by the group [SL(2,C)]^3 and that the\nentanglement measure is given by Cayley\u0027s hyperdeterminant. This has provided\nan analogy with certain N=2 supersymmetric black holes in string theory, whose\nentropy is also given by the hyperdeterminant. In this paper, we extend the\nanalogy to N=8. We propose that a particular tripartite entanglement of seven\nqubits, encoded in the Fano plane, is described by the exceptional group E_7(C)\nand that the entanglement measure is given by Cartan\u0027s quartic E_7 invariant.",
    "arxiv_id": "quant-ph/0609227",
    "authors": [
      "M. J. Duff",
      "S. Ferrara"
    ],
    "categories": [
      "quant-ph",
      "gr-qc",
      "hep-th"
    ],
    "doi": "10.1103/PhysRevD.76.025018",
    "journal_ref": "Phys.Rev.D76:025018,2007",
    "title": "E_7 and the tripartite entanglement of seven qubits",
    "url": "https://arxiv.org/abs/quant-ph/0609227"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "32da92fc-1ceb-4b96-ba14-072a74b5ece6",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}