{
  "annotation_id": "9c5f391c-78d4-4ddf-aad7-89d295cff9b9",
  "date_created": "2026-03-02T18:02:41.104000Z",
  "date_modified": "2026-03-02T18:02:41.104000Z",
  "file_hash": "ef9c4a3a3f835fe2e796168ad65ae54b8c510319344d4cb2174bb142d0688d06",
  "private": false,
  "record": {
    "abstract": "We show that two-atom correlation measurements of the type involved in a\nrecent experimental study of the evolution of a mesoscopic superposition state\nprepared in a definite mode of a high-Q cavity can be used to determine the\neigenvalues of the reduced density matrix of the field, provided the assumed\ndynamical conditions are actually fulfilled to experimental accuracy. These\nconditions involve i) a purely dispersive coupling of the field to the Rydberg\natoms used to manipulate and to monitor the cavity field, and ii) the effective\nabsence of correlations in the ground state of the system consisting of the\ncavity coupled to the ``reservoir\u0027\u0027 which accounts for the decoherence and\ndamping processes. A microscopic calculation at zero temperature is performed\nand compared to master equation results.",
    "arxiv_id": "quant-ph/9804033",
    "authors": [
      "K. Fonseca Romero",
      "M. C. Nemes",
      "J. G. Peixoto de Faria",
      "A. N. Salgueiro",
      "A. F. R. de Toledo Piza"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1103/PhysRevA.58.3205",
    "title": "Decoherence of mesoscopic states of cavity fields",
    "url": "https://arxiv.org/abs/quant-ph/9804033"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "62746585-0fbb-40b8-9a0f-23eae629ee16",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}