{
  "annotation_id": "66fb97bd-01fb-46b7-bd36-1acc58897fb7",
  "date_created": "2026-03-02T18:02:45.185000Z",
  "date_modified": "2026-03-02T18:02:45.185000Z",
  "file_hash": "107589a1ed161817bc9e27a6dbe1b9337a3da44d8aed2ff19acdc0b04dc21d29",
  "private": false,
  "record": {
    "abstract": "We demonstrate several new results for the nonlinear interferometer, which\nemerge from a formalism which describes in an elegant way the output field of\nthe nonlinear interferometer as two-mode entangled coherent states. We clarify\nthe relationship between squeezing and entangled coherent states, since a weak\nnonlinear evolution produces a squeezed output, while a strong nonlinear\nevolution produces a two-mode, two-state entangled coherent state. In between\nthese two extremes exist superpositions of two-mode coherent states manifesting\nvarying degrees of entanglement for arbitrary values of the nonlinearity. The\ncardinality of the basis set of the entangled coherent states is finite when\nthe ratio $\\chi / \\pi$ is rational, where $\\chi$ is the nonlinear strength. We\nalso show that entangled coherent states can be produced from product coherent\nstates via a nonlinear medium without the need for the interferometric\nconfiguration. This provides an important experimental simplification in the\nprocess of creating entangled coherent states.",
    "arxiv_id": "quant-ph/9812010",
    "authors": [
      "Barry C. Sanders",
      "Dien A. Rice"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1103/PhysRevA.61.013805",
    "journal_ref": "Phys.Rev. A61 (2000) 013805",
    "title": "Nonclassical Fields and the Nonlinear Interferometer",
    "url": "https://arxiv.org/abs/quant-ph/9812010"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "d6556a9f-1fd6-46a5-9a87-6d66e9422912",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}