{
  "annotation_id": "5e1de12a-2546-4cda-9e9c-d8b0888ce944",
  "date_created": "2026-03-02T18:01:55.580000Z",
  "date_modified": "2026-03-02T18:01:55.580000Z",
  "file_hash": "d2ae02318734dcf8518453951b2d2b27604fe36e551cb79a38a8feacc413cd83",
  "private": false,
  "record": {
    "abstract": "We consider the Minkowskian norm of the n-photon Stokes tensor, a scalar\ninvariant under the group realized by the transformations of stochastic local\nquantum operations and classical communications (SLOCC). This invariant is\noffered as a candidate entanglement measure for n-qubit states and discussed in\nrelation to measures of quantum state entanglement for certain important\nclasses of two-qubit and three-qubit systems. This invariant can be directly\nestimated via a quantum network, obviating the need to perform laborious\nquantum state tomography. We also show that this invariant directly captures\nthe extent of entanglement purification due to SLOCC filters.",
    "arxiv_id": "quant-ph/0301128",
    "authors": [
      "Gregg Jaeger",
      "Mihail Teodorescu-Frumosu",
      "Alexander Sergienko",
      "Bahaa E. A. Saleh",
      "Malvin C. Teich"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1103/PhysRevA.67.032307",
    "journal_ref": "Physics Review A 67, 032307 (2003).",
    "title": "A multi-photon Stokes-parameter invariant for entangled states",
    "url": "https://arxiv.org/abs/quant-ph/0301128"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "402662fb-cf39-4e5e-b1b4-b9a313dddeda",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}