{
  "annotation_id": "2720f6e3-7314-4575-97cf-6fa91497a061",
  "date_created": "2026-03-02T18:01:48.276000Z",
  "date_modified": "2026-03-02T18:01:48.276000Z",
  "file_hash": "5fa5ccd2f46e36aa42ad67180388e70d8079da8de01c32746c7b5185e08cb428",
  "private": false,
  "record": {
    "abstract": "The physical reality and observability of 2n\\pi Berry phases, as opposed to\nthe usually considered modulo 2\\pi topological phases is demonstrated with the\nhelp of computer simulation of a model adiabatic evolution whose parameters are\nvaried along a closed loop in the parameter space. Using the analogy of Berry\u0027s\nphase with the Dirac monopole, it is concluded that an interferometer loop\ntaken around a magnetic monopole of strength n/2 yields an observable 2n\\pi\nphase shift, where n is an integer. An experiment to observe the effect is\nproposed.",
    "arxiv_id": "quant-ph/0111123",
    "authors": [
      "Rajendra Bhandari"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1103/PhysRevLett.88.100403",
    "journal_ref": "Phys.Rev.Lett. 88 (2002) 100403",
    "title": "Observable Dirac-type singularities in Berry\u0027s phase and the monopole",
    "url": "https://arxiv.org/abs/quant-ph/0111123"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "e925cb0b-a7e5-4c14-b935-a0c89dd16b27",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}