{
  "annotation_id": "a6a31e7e-359a-4f50-b0a5-d9091cfe1b21",
  "date_created": "2026-03-02T18:02:34.651000Z",
  "date_modified": "2026-03-02T18:02:34.651000Z",
  "file_hash": "90173156d60bb33409426b2064df2f6d84b766ef32f772deda39d4775ffd0b57",
  "private": false,
  "record": {
    "abstract": "We study a generic open quantum system where the coupling between the system\nand its environment is of an energy-preserving quantum nondemolition (QND)\ntype. We obtain the general master equation for the evolution of such a system\nunder the influence of a squeezed thermal bath of harmonic oscillators. From\nthe master equation it can be seen explicitly that the process involves\ndecoherence or dephasing without any dissipation of energy. We work out the\ndecoherence-causing term in the high and zero temperature limits and check that\nthey match with known results for the case of a thermal bath. The decay of the\ncoherence is quantified as well by the dynamics of the linear entropy of the\nsystem under various environmental conditions. We make a comparison of the\nquantum statistical properties between QND and dissipative types of evolution\nusing a system of two-level atom and a harmonic oscillator.",
    "arxiv_id": "quant-ph/0703054",
    "authors": [
      "Subhashish Banerjee",
      "R. Ghosh"
    ],
    "categories": [
      "quant-ph",
      "cond-mat.stat-mech"
    ],
    "title": "Dynamics of decoherence without dissipation in a squeezed thermal bath",
    "url": "https://arxiv.org/abs/quant-ph/0703054"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "f90573eb-a532-44c3-b17b-eab465d665c1",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}