{
  "annotation_id": "9b65d247-8795-4aef-a58c-8dd3706c6d87",
  "date_created": "2026-03-02T18:00:25.484000Z",
  "date_modified": "2026-03-02T18:00:25.484000Z",
  "file_hash": "e4a35eb4d254ef70b9a9bc1f66fa49320549d909352df86b63873416e055016f",
  "private": false,
  "record": {
    "abstract": "An exact method for direct calculation of the Jost function and Jost\nsolutions for a repulsive singular potential is presented. Within this method\nthe Schrodinger equation is replaced by an equivalent system of linear\nfirst-order differential equations, which after complex rotation, can easily be\nsolved numerically. The Jost function can be obtained to any desired accuracy\nfor all complex momenta of physical interest, including the spectral points\ncorresponding to bound and resonant states. The method can also be used in the\ncomplex angular-momentum plane to calculate the Regge trajectories. The\neffectiveness of the method is demonstrated using the Lennard-Jones (12,6)\npotential. The spectral properties of the realistic inter-atomic He4-He4\npotentials HFDHE2 and HFD-B of Aziz and collaborators are also investigated.",
    "arxiv_id": "nucl-th/9901023",
    "authors": [
      "S. A. Sofianos",
      "S. A. Rakityansky",
      "S. E. Massen"
    ],
    "categories": [
      "nucl-th",
      "quant-ph"
    ],
    "doi": "10.1103/PhysRevA.60.337",
    "title": "Jost Function for Singular Potentials",
    "url": "https://arxiv.org/abs/nucl-th/9901023"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "2f443527-8809-4c3f-b77c-38ffd27257fa",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}