{
  "annotation_id": "091a19c3-1449-458c-a894-5eaf5152b980",
  "date_created": "2026-03-02T18:00:50.132000Z",
  "date_modified": "2026-03-02T18:00:50.132000Z",
  "file_hash": "e4f3c119f35f9f4e219da0aded8335fdce9640b1d2f965cd750131358a4bb887",
  "private": false,
  "record": {
    "abstract": "We demonstrate a simple method for controlling nonlinear switching of\ndiscrete solitons in arrays of weakly coupled optical waveguides, for both\ncubic and uadratic nonlinearities. Based on the effective discrete nonlinear\nequations describing the waveguide arrays in the tight-binding approximation,\nwe develop the concept of the array engineering by means of a step-like\nvariation of the waveguide coupling. We demonstrate the digitized switching of\na narrow input beam for up to eleven neighboring waveguides, in the case of the\ncubic nonlinearity, and up to ten waveguides, in the case of quadratic\nnonlinearity. We discuss our predictions in terms of the physics of the\nengineered Peierls-Nabarro (PN) potential experienced by strongly localized\nnonlinear modes moving in a lattice and calculate, for the first time, the PN\npotential for the quadratic nonlinear array. We also confirm our concept and\nmajor findings for a full-scaled continuous model and realistic parameters, by\nmeans of the beam propagation method.",
    "arxiv_id": "physics/0401089",
    "authors": [
      "R. A. Vicencio",
      "M. I. Molina",
      "Y. S. Kivshar"
    ],
    "categories": [
      "physics.optics",
      "cond-mat.dis-nn",
      "nlin.PS"
    ],
    "doi": "10.1103/PhysRevE.70.026602",
    "title": "Switching of Discrete Solitons in Engineered Waveguide Arrays",
    "url": "https://arxiv.org/abs/physics/0401089"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "19aa414c-4baa-46ed-8a0e-f3dee86f367b",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}