{
  "annotation_id": "f3ca4679-fde0-4011-961b-3b825eef8f38",
  "date_created": "2026-03-02T18:01:03.606000Z",
  "date_modified": "2026-03-02T18:01:03.606000Z",
  "file_hash": "43c14afdb4677f84adc94605d3ca84757b07b23681327e2d27d714df0391423f",
  "private": false,
  "record": {
    "abstract": "At first, a review of our knowledge on the distribution of galaxies at\nlarge-scale, leading to a foam-like large-scale structure of the Universe, is\npresented in the Introduction. Then, it is shown how, according to the present\ntheory for the formation of superclusters, wave scalar perturbations of the\nsame frequency traveling in opposite directions give rise to standing waves,\nwhich cause a motion of the cosmic material towards the nodes, resulting in the\nconcentration of the cosmic material around the nodes. Generalizing this effect\nto two (three) dimensions, the cosmic material is concentrated around the node\nlines (node surfaces). It is proposed that the three-dimensional effect is\nresponsible for the foam-like large-scale structure of the Universe.",
    "arxiv_id": "physics/0512047",
    "authors": [
      "Evangelos Chaliasos"
    ],
    "categories": [
      "physics.gen-ph"
    ],
    "title": "Standing waves in the Universe",
    "url": "https://arxiv.org/abs/physics/0512047"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "e1c860f3-78fe-4fe6-8720-badc0b92bd03",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}