{
  "annotation_id": "2b4c355a-cef3-438a-b83a-2de19fb8d39e",
  "date_created": "2026-03-02T18:01:49.552000Z",
  "date_modified": "2026-03-02T18:01:49.552000Z",
  "file_hash": "808282d6caab68df807ce71f68c71b90e8047a750efe5c2c56e6ff0d557c26b2",
  "private": false,
  "record": {
    "abstract": "We study the entanglement properties of a closed chain of harmonic\noscillators that are coupled via a translationally invariant Hamiltonian, where\nthe coupling acts only on the position operators. We consider the ground state\nand thermal states of this system, which are Gaussian states. The entanglement\nproperties of these states can be completely characterized analytically when\none uses the logarithmic negativity as a measure of entanglement.",
    "arxiv_id": "quant-ph/0205025",
    "authors": [
      "K. Audenaert",
      "J. Eisert",
      "M. B. Plenio",
      "R. F. Werner"
    ],
    "categories": [
      "quant-ph",
      "cond-mat"
    ],
    "doi": "10.1103/PhysRevA.66.042327",
    "journal_ref": "Phys. Rev. A 66, 042327 (2002)",
    "title": "Entanglement Properties of the Harmonic Chain",
    "url": "https://arxiv.org/abs/quant-ph/0205025"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "61d440d7-7723-4739-86d0-0c38080ab7b7",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}