{
  "annotation_id": "2f1189e6-9f1b-48de-96a6-78100cf3ae23",
  "date_created": "2026-03-02T18:01:48.902000Z",
  "date_modified": "2026-03-02T18:01:48.902000Z",
  "file_hash": "4fca3143f3af6f74c0b593dffa82a51d8c68f36926d079f7fa6aaafa0facc5b3",
  "private": false,
  "record": {
    "abstract": "We investigate the decoherence of a superposition of symmetric collective\ninternal states of an atomic ensemble due to inhomogeneous coupling to external\ncontrol fields. For asymptotically large system, we find the characteristic\ndecoherence rate scales as $\\sqrt{N}$ with $N$ being the total number of atoms.\nOur results shed new light on attempts for quantum information processing and\nstorage with atomic ensembles.",
    "arxiv_id": "quant-ph/0203072",
    "authors": [
      "C. P. Sun",
      "S. Yi",
      "L. You"
    ],
    "categories": [
      "quant-ph",
      "cond-mat.stat-mech"
    ],
    "doi": "10.1103/PhysRevA.67.063815",
    "title": "Decoherence of collective atomic spin states due to inhomogeneous   coupling",
    "url": "https://arxiv.org/abs/quant-ph/0203072"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "ee1311d4-59e8-4e65-9a97-e93c4ff7dd9f",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}