{
  "annotation_id": "1c22dd8e-7194-4dba-9f44-3a164f26c571",
  "date_created": "2026-03-02T18:02:03.604000Z",
  "date_modified": "2026-03-02T18:02:03.604000Z",
  "file_hash": "74cc3ab9506ab7b8c11f5562ca765aae9c963c9c8243db760e2280f3c7d36ac6",
  "private": false,
  "record": {
    "abstract": "We examine an exactly solvable model of decoherence - a spin-system\ninteracting with a collection of environment spins. We show that in this model\n(introduced some time ago to illustrate environment-induced superselection)\ngeneric assumptions about the coupling strengths lead to a universal (Gaussian)\nsuppression of coherence between pointer states. We explore the regimes of\nvalidity of these results and discuss their relation to the spectral features\nof the environment and to the Loschmidt echo (or fidelity). Finally, we comment\non the observation of such time dependence in spin echo experiments.",
    "arxiv_id": "quant-ph/0312207",
    "authors": [
      "W. H. Zurek",
      "F. M. Cucchietti",
      "J. P. Paz"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1103/PhysRevA.72.052113",
    "title": "Gaussian Decoherence from Random Spin Environments",
    "url": "https://arxiv.org/abs/quant-ph/0312207"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "59cac302-3b9f-4e02-882f-9e3e2157ac32",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}