{
  "annotation_id": "a685b93b-0258-46be-b34a-73ef63a1d070",
  "date_created": "2026-03-02T18:00:11.082000Z",
  "date_modified": "2026-03-02T18:00:11.082000Z",
  "file_hash": "701b03450b39e5a33fd24cb9e7ad239697107ae94b2109fa10abb08efd735156",
  "private": false,
  "record": {
    "abstract": "We present a practical solution to the \"sign problem\" in the auxiliary field\nMonte Carlo approach to the nuclear shell model. The method is based on\nextrapolation from a continuous family of problem-free Hamiltonians. To\ndemonstrate the resultant ability to treat large shell-model problems, we\npresent results for 54Fe in the full fp-shell basis using the Brown-Richter\ninteraction. We find the Gamow-Teller beta^+ strength to be quenched by 58%\nrelative to the single-particle estimate, in better agreement with experiment\nthan previous estimates based on truncated bases.",
    "arxiv_id": "nucl-th/9310026",
    "authors": [
      "Y. Alhassid",
      "D. J. Dean",
      "S. E. Koonin",
      "G. Lang",
      "W. E. Ormand"
    ],
    "categories": [
      "nucl-th",
      "hep-lat"
    ],
    "doi": "10.1103/PhysRevLett.72.613",
    "journal_ref": "Phys.Rev.Lett.72:613-616,1994",
    "title": "Practical solution to the Monte Carlo sign problem: Realistic   calculations of 54Fe",
    "url": "https://arxiv.org/abs/nucl-th/9310026"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "76af5da9-0e44-4b76-b8f8-8a099f7ee663",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}