{
  "annotation_id": "88b2ef3b-4693-454a-acca-aad28fb88345",
  "date_created": "2026-03-02T18:02:47.524000Z",
  "date_modified": "2026-03-02T18:02:47.524000Z",
  "file_hash": "edec610630ff378de44314e22210bc2beac30331324cf8eebfa9888eb8262fac",
  "private": false,
  "record": {
    "abstract": "We introduce new kinds of states of quantized radiation fields, which are the\nsuperpositions of negative binomial states. They exhibit remarkable\nnon-classical properties and reduce to Schr\\\"odinger cat states in a certain\nlimit. The algebras involved in the even and odd negative binomial states turn\nout to be generally deformed oscillator algebras. It is found that the even and\nodd negative binomial states satisfy a same eigenvalue equation with a same\neigenvalue and they can be viewed as two-photon nonlinear coherent states. Two\nmethods of generating such states are proposed.",
    "arxiv_id": "quant-ph/9910098",
    "authors": [
      "Xiao-Guang Wang",
      "Hong-Chen Fu"
    ],
    "categories": [
      "quant-ph"
    ],
    "journal_ref": "Commun. Theor. Phys. 35, 729-734 (2001)",
    "title": "Statistical Properties and Algebraic Characteristics of Quantum   Superpositions of Negative Binomial States",
    "url": "https://arxiv.org/abs/quant-ph/9910098"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "fa958a32-1b80-485a-bbd0-66d7071f2d01",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}