{
  "annotation_id": "d2da4020-c0f6-4bc5-b2c5-283941481fcf",
  "date_created": "2026-03-02T18:02:47.943000Z",
  "date_modified": "2026-03-02T18:02:47.943000Z",
  "file_hash": "ad85332d679b48da91960844742b3eec1b475810219b4e8a2dc2992a5fa41fd0",
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  "record": {
    "abstract": "Using the concept of spectral engineering we explore the possibilities of\nbuilding potentials with prescribed spectra offered by a modified intertwining\ntechnique involving operators which are the product of a standard first-order\nintertwiner and a unitary scaling. In the same context we study the iterations\nof such transformations finding that the scaling intertwining provides a\ndifferent and richer mechanism in designing quantum spectra with respect to\nthat given by the standard intertwining",
    "arxiv_id": "quant-ph/9910125",
    "authors": [
      "D. J. Fernandez C.",
      "H. C. Rosu"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1238/Physica.Regular.064a00177",
    "journal_ref": "Physica Scripta 64 (2001) 177-183",
    "title": "Quantum mechanical spectral engineering by scaling intertwining",
    "url": "https://arxiv.org/abs/quant-ph/9910125"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "e63b26a2-84d0-4b4d-b395-e5afd1a59c46",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}