{
  "annotation_id": "0a5b4418-294a-47ac-92d3-4d3fc26412b9",
  "date_created": "2026-03-02T18:00:46.163000Z",
  "date_modified": "2026-03-02T18:00:46.163000Z",
  "file_hash": "e2314cec591b359fa7dd8094042b1d69a241bbddedee95f23ad3edcc274c3ba4",
  "private": false,
  "record": {
    "abstract": "The stability of two-dimensional bright vortex solitons in a media with\nfocusing cubic and defocusing quintic nonlinearities is investigated\nanalytically and numerically. It is proved that above some critical beam powers\nnot only one- and two-charged but also multiple-charged stable vortex solitons\ndo exist. A vortex soliton occurs robust with respect to symmetry-breaking\nmodulational instability in the self-defocusing regime provided that its radial\nprofile becomes flattened, so that a self-trapped wave beam gets a pronounced\nsurface. It is demonstrated that the dynamics of a slightly perturbed stable\nvortex soliton resembles an oscillation of a liquid stream having a surface\ntension. Using the idea of sustaining effective surface tension for spatial\nvortex soliton in a media with competing nonlinearities the explanation of a\nsuppression of the modulational instability is proposed.",
    "arxiv_id": "physics/0308079",
    "authors": [
      "T. A. Davydova",
      "A. I. Yakimenko"
    ],
    "categories": [
      "physics.optics"
    ],
    "doi": "10.1088/1464-4258/6/5/010",
    "title": "Stable multiple-charged localized optical vortices in cubic-quintic   nonlinear media",
    "url": "https://arxiv.org/abs/physics/0308079"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "b7a170d6-0a34-466c-8a01-29e3ae56890d",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}