{
  "annotation_id": "f0b58b98-2a6b-4498-88c4-fb28adb8dcab",
  "date_created": "2026-03-02T18:02:23.624000Z",
  "date_modified": "2026-03-02T18:02:23.624000Z",
  "file_hash": "c76b8ffcbd46fc8ce416ed64bb08c30ff0aa05dface6374ae1104ad7855c7ed0",
  "private": false,
  "record": {
    "abstract": "We show that the single-site entanglement of a generic spin-1/2 fermionic\nlattice system can be used as a reliable marker of a finite-order quantum phase\ntransition, given certain provisos. We discuss the information contained in the\nsingle-site entanglement measure, and provide illustrations from the\nMott-Hubbard metal-insulator transitions of the one-dimensional Hubbard model,\nand the Hubbard model with long-range hopping.",
    "arxiv_id": "quant-ph/0602048",
    "authors": [
      "Daniel Larsson",
      "Henrik Johannesson"
    ],
    "categories": [
      "quant-ph",
      "cond-mat.str-el"
    ],
    "doi": "10.1103/PhysRevA.73.042320",
    "journal_ref": "Phys. Rev. A 73, 042320 (2006)",
    "title": "Single-Site Entanglement of Fermions at a Quantum Phase Transition",
    "url": "https://arxiv.org/abs/quant-ph/0602048"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "2f35e21a-c06e-411a-a645-080cfe4931dd",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}