{
  "annotation_id": "dfa9c168-a6f1-4ec0-8836-43b6cad3b14f",
  "date_created": "2026-03-02T18:00:00.337000Z",
  "date_modified": "2026-03-02T18:00:00.337000Z",
  "file_hash": "42b4087f37ae70fe9d54bb3436d9377c31f27b565845703d1b64e9934faff138",
  "private": false,
  "record": {
    "abstract": "A method is presented which allows one to introduce collective coordinates\nself-consistently, in distinction to the Caldeira-Leggett model. It is\ndemonstrated how the partition function Z for the total nuclear system can be\ncalculated to deduce information both on its level density as well as on the\ndecay rate of unstable modes. For the evaluation of Z different approximations\nare discussed. A recently developed variational approach turns out superior to\nthe conventional methods that include quantum effects on the level of local\nRPA. Dissipation is taken into account by applying energy smearing, simulating\nin this way the coupling to more complicated states. In principle, such a\ncoupling must depend on temperature. Previous calculations along another\nmicroscopic approach show this fact to imply an intriguing variation of the\ntransport coefficients of collective motion with T. The relevance of this\nfeature is demonstrated for the thermal fission rate and for the formation\nprobability of super-heavy elements.",
    "arxiv_id": "nucl-th/0401040",
    "authors": [
      "Christian Rummel",
      "Helmut Hofmann"
    ],
    "categories": [
      "nucl-th"
    ],
    "doi": "10.1143/PTPS.154.434",
    "journal_ref": "Prog.Theor.Phys.Suppl. 154 (2004) 434-441",
    "title": "Nuclear quantum transport for barrier problems",
    "url": "https://arxiv.org/abs/nucl-th/0401040"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "af6ee90e-53a1-4e16-84f4-04a51bf3f123",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}