{
  "annotation_id": "0f864778-1c5a-4b72-b890-1513400dc410",
  "date_created": "2026-03-02T18:02:02.803000Z",
  "date_modified": "2026-03-02T18:02:02.803000Z",
  "file_hash": "1171779a7b5d83222674fcfcb2dd6bd3ffc7c3ff95486b229bcc15fbd40b9133",
  "private": false,
  "record": {
    "abstract": "We give a canonical form of PPT states in ${\\cal C}^2 \\otimes {\\cal\nC}^2\\otimes {\\cal C}^2 \\otimes {\\cal C}^N$ with rank=$N$. From this canonical\nform a necessary separable condition for these states is presented.",
    "arxiv_id": "quant-ph/0310146",
    "authors": [
      "S. M. Fei",
      "X. H. Gao",
      "X. H. Wang",
      "Z. X. Wang",
      "Ke Wu"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1088/0253-6102/40/5/515",
    "journal_ref": "Commun. Theor. Phys. 40 (2003)515-518",
    "title": "Canonical Form and Separability of PPT States in 2x2x2xN Composite   Quantum Systems",
    "url": "https://arxiv.org/abs/quant-ph/0310146"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "c3f0ad8f-684d-41da-a7f8-c9695611cd95",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}