{
  "annotation_id": "98f0c8b3-b32e-44aa-8148-3048f2b6b816",
  "date_created": "2026-03-02T18:02:24.066000Z",
  "date_modified": "2026-03-02T18:02:24.066000Z",
  "file_hash": "e90afb1c8ce4a8dd3efe7fbebb05cfc22ecc99564c7f8f4680a80c46b78cb9dc",
  "private": false,
  "record": {
    "abstract": "We introduce a new measure called reduced entropy of sublattice to quantify\nentanglement in spin, electron and boson systems. By analyzing this quantity,\nwe reveal an intriguing connection between quantum entanglement and quantum\nphase transitions in various strongly correlated systems: the local extremes of\nreduced entropy and its first derivative as functions of the coupling constant\ncoincide respectively with the first and second order transition points. Exact\nnumerical studies merely for small lattices reproduce several well-known\nresults, demonstrating that our scenario is quite promising for exploring\nquantum phase transitions.",
    "arxiv_id": "quant-ph/0512143",
    "authors": [
      "Y. Chen",
      "Z. D. Wang",
      "F. C. Zhang"
    ],
    "categories": [
      "quant-ph",
      "cond-mat.str-el"
    ],
    "doi": "10.1103/PhysRevB.73.224414",
    "journal_ref": "Phys. Rev. B73, 224414(2006)",
    "title": "Exploring Quantum Phase Transitions with a Novel Sublattice Entanglement   Scenario",
    "url": "https://arxiv.org/abs/quant-ph/0512143"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "6d0c17c8-d5c3-40c8-a0ed-bab5ab8b12c4",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}