{
  "annotation_id": "62dc680b-45ff-4380-bcf4-31af98832756",
  "date_created": "2026-03-02T18:00:32.268000Z",
  "date_modified": "2026-03-02T18:00:32.268000Z",
  "file_hash": "f1c4a712c6fc59595999634cb36703ff1bae57d58729837b7c92be695ed9f36d",
  "private": false,
  "record": {
    "abstract": "In this paper we present a theoretical analysis of an experiment by Mugnai\nand collaborators where superluminal behavior was observed in the propagation\nof microwaves. We suggest that what was observed can be well approximated by\nthe motion of a superluminal X wave. Furthermore the experimental results are\nalso explained by the so called scissor effect which occurs with the\nconvergence of pairs of signals coming from opposite points of an annular\nregion of the mirror and forming an interference peak on the intersection axis\ntraveling at superluminal speed. We clarify some misunderstandings concerning\nthis kind of electromagnetic wave propagation in vacuum.",
    "arxiv_id": "physics/0012032",
    "authors": [
      "W. A. Rodrigues Jr",
      "Dario S. Thober",
      "Ademir L. Xavier Jr"
    ],
    "categories": [
      "physics.gen-ph"
    ],
    "doi": "10.1016/S0375-9601(01)00316-4",
    "title": "Causal explanation for observed superluminal behavior of microwave   propagation in free space",
    "url": "https://arxiv.org/abs/physics/0012032"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "fe7ce34c-ff4a-4de3-aabc-ec260cf33cac",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}