{
  "annotation_id": "a1012786-04b7-4c44-acc2-7b583a2f3f6f",
  "date_created": "2026-03-02T18:01:45.448000Z",
  "date_modified": "2026-03-02T18:01:45.448000Z",
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  "private": false,
  "record": {
    "abstract": "Quantum entanglement is at the heart of many tasks in quantum information.\nApart from simple cases (low dimensions, few particles, pure states), however,\nthe mathematical structure of entanglement is not yet fully understood. This\ntutorial is an introduction to our present knowledge about how to decide\nwhether a given state is separable or entangled, how to characterize\nentanglement via witness operators, how to classify entangled states according\nto their usefulness (i.e. distillability), and how to quantify entanglement\nwith appropriate measures.",
    "arxiv_id": "quant-ph/0110078",
    "authors": [
      "Dagmar Bruss"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1063/1.1494474",
    "journal_ref": "J. Math. Phys. 43, 4237 (2002)",
    "title": "Characterizing Entanglement",
    "url": "https://arxiv.org/abs/quant-ph/0110078"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "d88aecb8-1d68-4254-b0d8-3c688da96cce",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}