{
  "annotation_id": "29c1bbaf-dbcb-4bfc-99ae-592bdabe092b",
  "date_created": "2026-03-02T18:02:20.634000Z",
  "date_modified": "2026-03-02T18:02:20.634000Z",
  "file_hash": "2d6b1f66fae4a16f443033d10d4bd1a9965a3b3a4a5dca76cbeb2bfc2dbc2646",
  "private": false,
  "record": {
    "abstract": "The Valence-Bond-Solid (VBS) states are in general ground states for certain\ngapped models. We consider the entanglement of VBS states on a two-dimensional\nCayley tree. We show that the entropy of the reduced density operator does not\ndepend on the whole size of the Cayley tree. We also show that asymptotically,\nthe entropy is liearly proportional to the number of singlet states cut by the\nreduced density operator of the VBS state.",
    "arxiv_id": "quant-ph/0511150",
    "authors": [
      "Heng Fan",
      "Vladimir Korepin",
      "Vwani Roychowdhury"
    ],
    "categories": [
      "quant-ph"
    ],
    "title": "Valence-Bond-Solid state entanglement in a 2-D Cayley tree",
    "url": "https://arxiv.org/abs/quant-ph/0511150"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "a38a66d0-2140-4d68-8885-4099ba254562",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}