{
  "annotation_id": "a964bd52-d0bc-44f5-a927-4a4ae619a791",
  "date_created": "2026-03-02T18:00:28.544000Z",
  "date_modified": "2026-03-02T18:00:28.544000Z",
  "file_hash": "d41afa11a1a829d24b574303b5c88fe0aeff948c24d0029728892892408f16c7",
  "private": false,
  "record": {
    "abstract": "We study the structure of eigenstates in two-body interaction random matrix\nensembles and find significant deviations from random matrix theory\nexpectations. The deviations are most prominent in the tails of the spectral\ndensity and indicate localization of the eigenstates in Fock space. Using ideas\nrelated to scar theory we derive an analytical formula that relates\nfluctuations in wave function intensities to fluctuations of the two-body\ninteraction matrix elements. Numerical results for many-body fermion systems\nagree well with the theoretical predictions.",
    "arxiv_id": "nucl-th/9911038",
    "authors": [
      "Lev Kaplan",
      "Thomas Papenbrock"
    ],
    "categories": [
      "nucl-th",
      "chao-dyn",
      "nlin.CD"
    ],
    "doi": "10.1103/PhysRevLett.84.4553",
    "journal_ref": "Phys.Rev.Lett.84:4553-4556,2000",
    "title": "Wave Function Structure in Two-Body Random Matrix Ensembles",
    "url": "https://arxiv.org/abs/nucl-th/9911038"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "9d82c527-5a54-4635-8b9f-291f573f549d",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}