{
  "annotation_id": "5edcd6f4-7973-4378-a380-6dd3f06446d7",
  "date_created": "2026-03-02T18:02:12.913000Z",
  "date_modified": "2026-03-02T18:02:12.913000Z",
  "file_hash": "404e79210861b23ded75a7de017b0b03de8b8d501eedc46d3e42911367ea0d43",
  "private": false,
  "record": {
    "abstract": "We study the occurrence of multipartite entanglement in spin chains. We show\nthat certain genuine multipartite entangled states, namely W states, can be\nobtained as ground states of simple XX type ferromagnetic spin chains in a\ntransverse magnetic field, for any number of sites. Moreover, multipartite\nentanglement is proven to exist even at finite temperatures. A transition from\na product state to a multipartite entangled state occurs when decreasing the\nmagnetic field to a critical value. Adiabatic passage through this point can\nthus lead to the generation of multipartite entanglement.",
    "arxiv_id": "quant-ph/0411080",
    "authors": [
      "D. Bruss",
      "N. Datta",
      "A. Ekert",
      "L. C. Kwek",
      "C. Macchiavello"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1103/PhysRevA.72.014301",
    "journal_ref": "Phys. Rev. A 72, 014301 (2005)",
    "title": "Multipartite entanglement in quantum spin chains",
    "url": "https://arxiv.org/abs/quant-ph/0411080"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "34a25e1b-7184-45ca-9dfc-8312abe14f0b",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}