{
  "annotation_id": "e5d50eb2-a242-446a-ae24-8b437d6722a9",
  "date_created": "2026-03-02T18:01:38.851000Z",
  "date_modified": "2026-03-02T18:01:38.851000Z",
  "file_hash": "5ec318fb01b25db8b7764ac539213f89d9ab027b9b1acd9350ceb9293f1b2468",
  "private": false,
  "record": {
    "abstract": "We consider the spin 1/2 model coupled to a slowly varying magnetic field in\nthe presence of a weak damping represented by a Lindblad-form operators. We\nshow that Berry\u0027s geometrical phase remains unaltered by the two dissipation\nmechanism considered. Dissipation effects are twofold: a shrinking in the\nmodulus of the Bloch\u0027s vector, which characterizes coherence loss and a time\ndependent (dissipation related) precession angle. We show that the line\nbroadening of the Fourier transformation of the components of magnetization is\nonly due to the presence of dissipation.",
    "arxiv_id": "quant-ph/0003049",
    "authors": [
      "K. M. Fonseca Romero",
      "A. C. Aguiar Pinto",
      "M. T. Thomaz"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1016/S0378-4371(01)00589-1",
    "journal_ref": "Physica {\\bf A307} (2002) 142",
    "title": "Berry\u0027s Phase in the Presence of a Dissipative Medium",
    "url": "https://arxiv.org/abs/quant-ph/0003049"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "66b0f7d8-5164-43c7-bee4-f1df5939b24c",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}