{
  "annotation_id": "38f0a799-19cd-40ef-9894-bf31f5b7339b",
  "date_created": "2026-03-02T18:02:34.733000Z",
  "date_modified": "2026-03-02T18:02:34.733000Z",
  "file_hash": "70776aed64acf81e16872ecc172eef9c6a65fe6078ab541edb58e772e0c64a4e",
  "private": false,
  "record": {
    "abstract": "The dynamics of a free charged particle, initially described by a coherent\nwave packet, interacting with an environment, i.e. the electromagnetic field\ncharacterized by a temperature $T$, is studied. Using the dipole approximation\nthe exact expressions for the evolution of the reduced density matrix both in\nmomentum and configuration space and the vacuum and the thermal contribution to\ndecoherence, are obtained. The time behaviour of the coherence lengths in the\ntwo representations are given. Through the analysis of the dynamic of the field\nstructure associated to the particle the vacuum contribution is shown to be\nlinked to the birth of correlations between the single momentum components of\nthe particle wave packet and the virtual photons of the dressing cloud.",
    "arxiv_id": "quant-ph/0612192",
    "authors": [
      "B. Bellomo",
      "G. Compagno",
      "F. Petruccione"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1103/PhysRevA.74.052112",
    "journal_ref": "Phys. Rev. A 74, 052112 (2006)",
    "title": "Loss of coherence and dressing in QED",
    "url": "https://arxiv.org/abs/quant-ph/0612192"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "eb67860e-d6cb-4b21-b679-fd110390b2b4",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}