{
  "annotation_id": "2f14121d-82e1-42f2-813d-1cb3bc882731",
  "date_created": "2026-03-02T18:01:52.626000Z",
  "date_modified": "2026-03-02T18:01:52.626000Z",
  "file_hash": "20d9c573d461447169d4b2356ee19f689db4c373616c1e6d8b22e29194c66762",
  "private": false,
  "record": {
    "abstract": "We study the robustness and fragility of entanglement of open quantum systems\nin some exactly solvable models in which the decoherence is caused by a pure\ndephasing process. In particular, for the toy models presented in this paper,\nwe identify two different time scales, one is responsible for local dephasing,\nwhile the other is for entanglement decay. For a class of fragile entangled\nstates defined in this paper, we find that the entanglement of two qubits, as\nmeasured by concurrence, decays faster asymptotically than the quantum\ndephasing of an individual qubit.",
    "arxiv_id": "quant-ph/0209037",
    "authors": [
      "T. Yu",
      "J. H. Eberly"
    ],
    "categories": [
      "quant-ph",
      "cond-mat.mes-hall",
      "cond-mat.supr-con"
    ],
    "doi": "10.1103/PhysRevB.66.193306",
    "journal_ref": "Phys. Rev. B, 66 (2002) 193306",
    "title": "Phonon decoherence of quantum entanglement: Robust and fragile states",
    "url": "https://arxiv.org/abs/quant-ph/0209037"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "1815b9ec-efc9-4128-a8b5-66f1d87661ee",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}