{
  "annotation_id": "0ced5f02-c2ff-4574-b001-aa03ebb7f18c",
  "date_created": "2026-03-02T18:02:27.344000Z",
  "date_modified": "2026-03-02T18:02:27.344000Z",
  "file_hash": "02979b932ecb7e22ed674696f4ef353b77eedf626b77a87b6f060a536d03dd73",
  "private": false,
  "record": {
    "abstract": "We characterize the two-site marginals of exchangeable states of a system of\nquantum spins in terms of a simple positivity condition. This result is used in\ntwo applications. We first show that the distance between two-site marginals of\npermutation invariant states on N spins and exchangeable states is of order\n1/N. The second application relates the mean ground state energy of a\nmean-field model of composite spins interacting through a product pair\ninteraction with the mean ground state energies of the components.",
    "arxiv_id": "quant-ph/0605216",
    "authors": [
      "M. Fannes",
      "C. Vandenplas"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1088/0305-4470/39/45/001",
    "title": "Finite size mean-field models",
    "url": "https://arxiv.org/abs/quant-ph/0605216"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "c4ce8009-3da9-4616-bcb9-8d6a56c171f4",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}