{
  "annotation_id": "ca48e13e-25b3-4696-b958-198245a1c746",
  "date_created": "2026-03-02T18:00:14.167000Z",
  "date_modified": "2026-03-02T18:00:14.167000Z",
  "file_hash": "dd1f9b26d01654c364c8241b01d610222ce513c957eb28834b1747150b389256",
  "private": false,
  "record": {
    "abstract": "We show that a quantum system with nonlocal interaction can have bound states\nof unusual type (isolated states (IS)). IS is a bound state that do not\ngenerate a $S$-matrix pole. IS can have positive as well as negative energy and\ncan be treated as a generalization of bound states embedded in continuum on the\ncase of discrete spectrum states. Formation of IS in the spectrum of quantum\nsystem is studied using a simple rank--2 separable potential with harmonic\noscillator formfactors. Some physical applications are discussed, in\nparticular, we propose separable $NN$ potential that describes not only most\nimportant two-nucleon data (deuteron binding energy and s-wave triplet and\nsinglet scattering phases) but also the trinucleon binding energy without\nmaking use of three-body forces.",
    "arxiv_id": "nucl-th/9406036",
    "authors": [
      "A. M. Shirokov",
      "Yu. F. Smirnov",
      "S. A. Zaytsev"
    ],
    "categories": [
      "nucl-th",
      "hep-ph",
      "hep-th"
    ],
    "title": "Isolated States",
    "url": "https://arxiv.org/abs/nucl-th/9406036"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "cd621fd2-6156-43bf-a49b-bcd4218c0a4d",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}