{
  "annotation_id": "abddd12d-a612-4b8a-b485-1f3308b2c765",
  "date_created": "2026-03-02T18:02:31.107000Z",
  "date_modified": "2026-03-02T18:02:31.107000Z",
  "file_hash": "150edac97da3ceb02348da52238f3f6c9d1cd732434ceae8a545a989c00fc7d7",
  "private": false,
  "record": {
    "abstract": "This paper, dedicated to the memory of late Professor Tiberiu Constantinescu,\ndiscusses two parametrizations of positive matrices. The first, called the\nSchur-Constantinescu parametrization, is used to construct several examples of\nseparable states (e.g., Hankel states). The second, called the Jacobi\nparametrization, is used to present an alternative to the Bloch sphere\nrepresentation of qubits.",
    "arxiv_id": "quant-ph/0610021",
    "authors": [
      "M. C. Tseng",
      "V. Ramakrishna"
    ],
    "categories": [
      "quant-ph"
    ],
    "title": "Dilation Theoretic Parametrizations of Positive Matrices with   Applications to Quantum Information",
    "url": "https://arxiv.org/abs/quant-ph/0610021"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "d65d36fe-3b5c-4722-ba68-58a660e1b9e9",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}