{
  "annotation_id": "40d28e08-e248-4af3-9a41-2e961e598c8d",
  "date_created": "2026-03-02T18:02:27.115000Z",
  "date_modified": "2026-03-02T18:02:27.115000Z",
  "file_hash": "2021686595ff149a00c6c1bc8bc42fc7c56e8fdac5642c014c197bd54fc76007",
  "private": false,
  "record": {
    "abstract": "For a central system uniformly coupled to a XY spin-1/2 bath in a transverse\nfield, we explicitly calculate the Loschmidt echo(LE) to characterize\ndecoherence quantitatively. We find that the anisotropy parameter $\\gamma $\naffects decoherence of the central system sensitively when $\\gamma \\in [0,1]$%\n, in particular, the LE becomes unit without varying with time when $\\gamma =0\n$, implying that environment-induced decoherence vanishes . Some other cases in\nwhich the LE is unit are discussed also.",
    "arxiv_id": "quant-ph/0606053",
    "authors": [
      "Yong-Cheng Ou",
      "Heng Fan"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1088/1751-8113/40/10/014",
    "journal_ref": "J.Phys.A-Math.Gen. 40,2455(2007)",
    "title": "Vanishing environment-induced decoherence",
    "url": "https://arxiv.org/abs/quant-ph/0606053"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "c4660a59-27f6-4b54-b943-349168f4f74d",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}