{
  "annotation_id": "71c12abb-7c9d-4661-acd2-f903dd3cd536",
  "date_created": "2026-03-02T18:00:39.703000Z",
  "date_modified": "2026-03-02T18:00:39.703000Z",
  "file_hash": "ad50e959e9994dc57050d39c16ea75c511244f5e1a90aeb9b4e3e6b48562125e",
  "private": false,
  "record": {
    "abstract": "We examine a spatial evolution of lightwaves in a nonlinear photonic crystal\nwith a quadratic nonlinearity when simultaneously a second harmonic and a\nsum-frequency generation are quasi-phase-matched. We find the conditions of a\ntransition to Hamiltonian chaos for different amplitudes of lightwaves at the\nboundary of the crystal.",
    "arxiv_id": "physics/0202048",
    "authors": [
      "Kirill N. Alekseev",
      "Aleksey V. Ponomarev"
    ],
    "categories": [
      "physics.optics",
      "cond-mat.stat-mech",
      "nlin.CD",
      "nlin.PS"
    ],
    "doi": "10.1134/1.1475717",
    "journal_ref": "JETP Letters 75(2002)174-178 [Pis\u0027ma Zh.Eksp.Teor.Fiz.\n  75(2002)206]",
    "title": "Optical chaos in nonlinear photonic crystals",
    "url": "https://arxiv.org/abs/physics/0202048"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "5f4b64c2-3cd4-4ab3-bb84-eb655b42dbc5",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}