{
  "annotation_id": "07c3d5e4-9e2c-48fa-a89f-2be35b76b278",
  "date_created": "2026-03-02T18:02:20.165000Z",
  "date_modified": "2026-03-02T18:02:20.165000Z",
  "file_hash": "2f830920496c2970e516fcb32de0edddea347934071533abed8ab57e362b0ca4",
  "private": false,
  "record": {
    "abstract": "This paper investigates the dynamical generation of entanglement in\nscattering systems, in particular two spin systems that interact via\nrotationally-invariant scattering. The spin degrees of freedom of the in-states\nare assumed to be in unentangled, pure states, as defined by the entropy of\nentanglement. Because of the restriction of rotationally-symmetric\ninteractions, perfectly-entangling S-matrices, i.e. those that lead to a\nmaximally entangled out-state, only exist for a certain class of separable\nin-states. Using Clebsch-Gordan coefficients for the rotation group, the\nscattering phases that determine the S-matrix are determined for the case of\nspin systems with $\\sigma = 1/2$, 1, and 3/2.",
    "arxiv_id": "quant-ph/0509013",
    "authors": [
      "N. L. Harshman"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1103/PhysRevA.73.062326",
    "journal_ref": "Phys. Rev. A 73, 062326 (2006)",
    "title": "Limits on entanglement in rotationally-invariant scattering of spin   systems",
    "url": "https://arxiv.org/abs/quant-ph/0509013"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "5726bc92-351c-468c-a384-6c479a0a2bd9",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}