{
  "annotation_id": "19b8901a-17be-4613-a593-2f96e87a687e",
  "date_created": "2026-03-02T18:02:27.216000Z",
  "date_modified": "2026-03-02T18:02:27.216000Z",
  "file_hash": "e8d251773f9ba6a085790896f5cf8393336a3b4bda115e88d2f98f11e9191a7c",
  "private": false,
  "record": {
    "abstract": "Starting from a phenomenological Hamiltonian originally written in terms of\nangular momentum operators we derive a new quantum angle-based Hamiltonian that\nallows for a discussion on the quantum spin tunneling. The study of the\napplicability of the present approach, carried out in calculations with a\nsoluble quasi-spin model, shows that we are allowed to use our method in the\ndescription of physical systems such as the Mn12-acetate molecule, as well as\nthe octanuclear iron cluster, Fe8, in a reliable way. With the present\ndescription the interpretation of the spin tunneling is seen to be direct, the\nspectra and energy barriers of those systems are obtained, and it is shown that\nthey agree with the experimental ones.",
    "arxiv_id": "quant-ph/0603183",
    "authors": [
      "D. Galetti"
    ],
    "categories": [
      "quant-ph"
    ],
    "title": "Quantum description of spin tunneling in magnetic molecules: a new view",
    "url": "https://arxiv.org/abs/quant-ph/0603183"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "ec3dcb7e-3ab3-4595-91d6-424ebd665c12",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}