{
  "annotation_id": "17ac5d97-639a-4cc4-844f-4ded015e8525",
  "date_created": "2026-03-02T18:02:06.994000Z",
  "date_modified": "2026-03-02T18:02:06.994000Z",
  "file_hash": "5c84b6fcefb7824a20a4b4ca899ffab195ee440d622af4ea8c11bd9e105fb70b",
  "private": false,
  "record": {
    "abstract": "We study the temporal evolution of entanglement pertaining to two qubits\ninteracting with a thermal bath. In particular we consider the simplest\nnontrivial spin bath models where symmetry breaking occurs and treat them by\nmean field approximation. We analytically find decoherence free entangled\nstates as well as entangled states with an exponential decay of the quantum\ncorrelation at finite temperature.",
    "arxiv_id": "quant-ph/0402073",
    "authors": [
      "Marco Lucamarini",
      "Simone Paganelli",
      "Stefano Mancini"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1103/PhysRevA.69.062308",
    "journal_ref": "Phys. Rev. A 69, 2345 (2004)",
    "title": "Two qubits entanglement dynamics in a symmetry-broken environment",
    "url": "https://arxiv.org/abs/quant-ph/0402073"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "6f9f8b45-5b7a-4783-a244-1e0df38ff741",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}