{
  "annotation_id": "57cb779d-6596-4b3a-9817-eb8fcd9b15d2",
  "date_created": "2026-03-02T18:01:59.125000Z",
  "date_modified": "2026-03-02T18:01:59.125000Z",
  "file_hash": "203626c1a11a1236ef9370473376abf865fc49df5c3fb939edf7c2d67dade000",
  "private": false,
  "record": {
    "abstract": "We investigate the lifetime of macroscopic entanglement under the influence\nof decoherence. For GHZ-type superposition states we find that the lifetime\ndecreases with the size of the system (i.e. the number of independent degrees\nof freedom) and the effective number of subsystems that remain entangled\ndecreases with time. For a class of other states (e.g. cluster states),\nhowever, we show that the lifetime of entanglement is independent of the size\nof the system.",
    "arxiv_id": "quant-ph/0307180",
    "authors": [
      "W. D\u00fcr",
      "H. -J. Briegel"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1103/PhysRevLett.92.180403",
    "journal_ref": "Phys. Rev. Lett. 92, 180403 (2004)",
    "title": "Stability of macroscopic entanglement under decoherence",
    "url": "https://arxiv.org/abs/quant-ph/0307180"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "953d142e-dd7b-42c2-993f-1cb3e4f90f56",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}