{
  "annotation_id": "7a6418e9-f9c9-46f6-a451-43ec17a54dff",
  "date_created": "2026-03-02T18:02:02.263000Z",
  "date_modified": "2026-03-02T18:02:02.263000Z",
  "file_hash": "c1847341e6bcce0d77d770feb831f62832452d1ccc91a21443a20bc9c832c6f7",
  "private": false,
  "record": {
    "abstract": "A characteristic action $\\Delta S$ is defined whose magnitude determines some\nproperties of the expectation value of a general quantum displacement operator.\nThese properties are related to the capability of a given environmental\n`monitoring\u0027 system to induce decoherence in quantum systems coupled to it. We\nshow that the scale for effective decoherence is given by $\\Delta\nS\\approx\\hbar$. We relate this characteristic action with a complementary\nquantity, $\\Delta Z$, and analyse their connection with the main features of\nthe pattern of structures developed by the environmental state in different\nphase space representations. The relevance of the $\\Delta S$-action scale is\nillustrated using both a model quantum system solved numerically and a set of\nmodel quantum systems for which analytical expressions for the time-averaged\nexpectation value of the displacement operator are obtained explicitly.",
    "arxiv_id": "quant-ph/0309030",
    "authors": [
      "Daniel Alonso",
      "S. Brouard",
      "Jose P. Palao",
      "R. Sala Mayato"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1103/PhysRevA.69.052111",
    "title": "Action scales for quantum decoherence and their relation to structures   in phase space",
    "url": "https://arxiv.org/abs/quant-ph/0309030"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "7b3c20e7-dafc-4b77-a896-13a3790789f6",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}