{
  "annotation_id": "a6a85180-d1c9-4fc5-bb9f-06a21f8524ba",
  "date_created": "2026-03-02T18:02:09.542000Z",
  "date_modified": "2026-03-02T18:02:09.542000Z",
  "file_hash": "f494ba59a86a21a8283d6a4b1d0239ee5e6638a5e70e1ff6534b38742f1489c4",
  "private": false,
  "record": {
    "abstract": "We study many-qubit generalizations of quantum noise channels that can be\nwritten as an incoherent sum of translations in phase space. Physical\ndescription in terms of the spectral properties of the superoperator and the\naction in phase space are provided. A very natural description of decoherence\nleading to a preferred basis is achieved with diffusion along a phase space\nline. The numerical advantages of using the chord representation are\nillustrated in the case of coarse-graining noise.",
    "arxiv_id": "quant-ph/0406236",
    "authors": [
      "Mario Leandro Aolita",
      "Ignacio Garcia-Mata",
      "Marcos Saraceno"
    ],
    "categories": [
      "quant-ph",
      "nlin.CD"
    ],
    "doi": "10.1103/PhysRevA.70.062301",
    "journal_ref": "Phys.Rev.A 70, 062301 (2004)",
    "title": "Noise models for superoperators in the chord representation",
    "url": "https://arxiv.org/abs/quant-ph/0406236"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "a1e97a04-cde2-4c00-a0b4-7945546bd474",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}