{
  "annotation_id": "46e0a955-1bdf-432f-9328-588d5340772d",
  "date_created": "2026-03-02T18:02:37.943000Z",
  "date_modified": "2026-03-02T18:02:37.943000Z",
  "file_hash": "b92447be2838ef74b66e143534bd7b27ca164f3b121a924c147779a0f9e4b56d",
  "private": false,
  "record": {
    "abstract": "We present both the gauge theoretic description and the numerical\ncalculations of the Berry phases with the real eigenstates, involving one with\na many-body system as a background and the other with no such background. We\ndemonstrate that for the former the sign of the Berry phase factor for a spin\n$\\f{1}{2}$ particle (hole) coupled to a slow subsystem (phonon) depends on both\nthe strength of electron correlations and the characteristics of the closed\npaths, unlike the cases for the latter.",
    "arxiv_id": "quant-ph/9605040",
    "authors": [
      "S. P. Hong",
      "H. Doh",
      "S. H. Suck Salk"
    ],
    "categories": [
      "quant-ph",
      "cond-mat"
    ],
    "title": "Berry Phases with Real Hamiltonians With and Without a Many-body System   as a Background",
    "url": "https://arxiv.org/abs/quant-ph/9605040"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "1e7bedd1-6d7f-4cca-b508-b967a80527a3",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}