{
  "annotation_id": "f4ea71be-fd4e-408c-84e3-e117ef0d51e2",
  "date_created": "2026-03-02T18:02:27.510000Z",
  "date_modified": "2026-03-02T18:02:27.510000Z",
  "file_hash": "69c416352028b3cb11fe07a8b19b17a29724570b067483a94dfbc0c038abb89b",
  "private": false,
  "record": {
    "abstract": "We study the area-dependent entropy and two-site entanglement for two state\nBose-Einstein condensates in a 2D optical lattice. We consider the case where\nthe array of two component condensates behave like an ensemble of spin-half\nparticles with the interaction to its nearest neighbors and next nearest\nneighbors. We show how the Hamiltonian of their Bose-Einstein condensate\nlattice with nearest-neighbor and next-nearest-neighbor interactions can be\nmapped into a harmonic lattice. We use this to determine the entropy and\nentanglement content of the lattice.",
    "arxiv_id": "quant-ph/0606110",
    "authors": [
      "H. T. Ng",
      "K. Burnett"
    ],
    "categories": [
      "quant-ph",
      "cond-mat.stat-mech"
    ],
    "doi": "10.1103/PhysRevA.75.023601",
    "journal_ref": "Phys. Rev. A 75, 023601 (2007)",
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "title": "Entanglement between atomic condensates in an optical lattice: effects   of interaction range",
    "url": "https://arxiv.org/abs/quant-ph/0606110"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "55cba48a-8580-4b99-b6b5-4988f9569654",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}