{
  "annotation_id": "6c417102-d2cd-454d-ae7f-9b809ad9b1e5",
  "date_created": "2026-03-02T18:02:37.878000Z",
  "date_modified": "2026-03-02T18:02:37.878000Z",
  "file_hash": "fc1ab1d1c83fbb05ac5c49ac34712181ef5b56667ed81b0dbce9957e30460fdd",
  "private": false,
  "record": {
    "abstract": "Hu, Paz and Zhang [ B.L. Hu, J.P. Paz and Y. Zhang, Phys. Rev. D {\\bf 45}\n(1992) 2843] have derived an exact master equation for quantum Brownian motion\nin a general environment via path integral techniques. Their master equation\nprovides a very useful tool to study the decoherence of a quantum system due to\nthe interaction with its environment. In this paper, we give an alternative and\nelementary derivation of the Hu-Paz-Zhang master equation, which involves\ntracing the evolution equation for the Wigner function. We also discuss the\nmaster equation in some special cases.",
    "arxiv_id": "quant-ph/9508004",
    "authors": [
      "J. J. Halliwell",
      "T. Yu"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1103/PhysRevD.53.2012",
    "journal_ref": "Phys.Rev. D53 (1996) 2012-2019",
    "title": "Alternative Derivation of the Hu-Paz-Zhang Master Equation for Quantum   Brownian Motion",
    "url": "https://arxiv.org/abs/quant-ph/9508004"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "baf55a0a-add4-41f5-a7be-d69cd3b2f8ae",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}