{
  "annotation_id": "5fa17e45-33a6-4c1c-aa12-da8322114018",
  "date_created": "2026-03-02T18:01:07.610000Z",
  "date_modified": "2026-03-02T18:01:07.610000Z",
  "file_hash": "613278c8d15cf8ce9f07efa1c1e7500932af9268316c0dec0276ab5a784fa1ed",
  "private": false,
  "record": {
    "abstract": "We predict theoretically the nondiffractive propagation of sonic waves in\nperiodic acoustic media (sonic crystals), by expansion into a set of plane\nwaves (Bloch mode expansion), and by finite difference time domain calculations\nof finite beams. We also give analytical evaluations of the parameters for\nnondiffractive propagation, as well as the minimum size of the nondiffractively\npropagating acoustic beams.",
    "arxiv_id": "physics/0606018",
    "authors": [
      "Isabel Perez-Arjona",
      "Victor J. Sanchez-Morcillo",
      "Javier Redondo",
      "Victor Espinosa",
      "Kestutis Staliunas"
    ],
    "categories": [
      "physics.flu-dyn",
      "physics.gen-ph"
    ],
    "doi": "10.1103/PhysRevB.75.014304",
    "title": "Nondiffractive sonic crystals",
    "url": "https://arxiv.org/abs/physics/0606018"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "6e54a488-f943-4e94-944f-605b5922aced",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}