{
  "annotation_id": "a73a30c7-01a2-4dfb-8262-10a4deaffd42",
  "date_created": "2026-03-02T18:02:22.886000Z",
  "date_modified": "2026-03-02T18:02:22.886000Z",
  "file_hash": "7814be42714b02661c2cecc6fe67b8e05873141d0d7c18a30769bc5bfa93a277",
  "private": false,
  "record": {
    "abstract": "We introduce a novel method to find exact density operators for a spin-1/2\nparticle in time-dependent magnetic fields by using the one-mode bosonic\nrepresentation of $su(2)$ and the connection with a time-dependent oscillator.\nAs illustrative examples, we apply the method to find the density operators for\nconstant and/or oscillating magnetic fields, which turn out to be\ntime-dependent in general.",
    "arxiv_id": "quant-ph/0511241",
    "authors": [
      "Sang Pyo Kim"
    ],
    "categories": [
      "quant-ph"
    ],
    "journal_ref": "J. Korean Phys. Soc. 48 (2006) 119-124",
    "title": "Method for Solving the Bloch Equation from the Connection with   Time-Dependent Oscillator",
    "url": "https://arxiv.org/abs/quant-ph/0511241"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "5de364c4-86ad-4482-949b-72d6860a7159",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}