{
  "annotation_id": "ec52caf5-d69b-4bb5-a859-23a6169ac94a",
  "date_created": "2026-03-02T18:02:03.597000Z",
  "date_modified": "2026-03-02T18:02:03.597000Z",
  "file_hash": "ae8e2bf25fe056d9f6e3bf82f3a175f8b31a9a0b850311b3ad0b8b0892e883d7",
  "private": false,
  "record": {
    "abstract": "In this paper it is shown that exact decoherence to minimal uncertainty\nGaussian pointer states is generic for free quantum particles coupled to a heat\nbath. More specifically, the paper is concerned with damped free particles\nlinearly coupled under product initial conditions to a heat bath at arbitrary\ntemperature, with arbitrary coupling strength and spectral densities covering\nthe Ohmic, subohmic, and supraohmic regime. Then it is true that there exists a\ntime t_c such that for times t\u003et_c the state can always be exactly represented\nas a mixture (convex combination) of particular minimal uncertainty Gaussian\nstates, regardless of and independent from the initial state. This exact\n`localisation\u0027 is hence not a feature specific to high temperatures and weak\ndamping limit, but is rather a generic property of damped free particles.",
    "arxiv_id": "quant-ph/0311022",
    "authors": [
      "J. Eisert"
    ],
    "categories": [
      "quant-ph",
      "cond-mat",
      "gr-qc"
    ],
    "doi": "10.1103/PhysRevLett.92.210401",
    "journal_ref": "Phys. Rev. Lett. 92, 210401 (2004)",
    "title": "Exact decoherence to pointer states in free open quantum systems is   universal",
    "url": "https://arxiv.org/abs/quant-ph/0311022"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "2eb6c339-1a8d-4a9c-a400-b02be87c2a55",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}