{
  "annotation_id": "8ad99112-fd4d-477a-b870-82f20b075f0a",
  "date_created": "2026-03-02T18:01:14.156000Z",
  "date_modified": "2026-03-02T18:01:14.156000Z",
  "file_hash": "93c81aa1824afa4a051b73149a7fdb288e8a4a1c3846f47bafe910a0ecd32103",
  "private": false,
  "record": {
    "abstract": "The mystery that the real scalar Klein-Gordon field has vanishing current\ndensities is resolved. The scalar field is shown to be a complex field due to\nthe condition of possessing a proper non-relativistic limit. Like the\nSchr\\\"odinger field, one component complex Klein-Gordon field corresponds to a\nboson with one flavor, and therefore there exists no physical real scalar\nfield. As a good example, we present the Schwinger model Hamiltonian which is\nnaturally described by the complex scalar field with one flavor. The\nnon-existence of the real scalar field indicates that the Higgs mechanism\nshould be reconsidered.",
    "arxiv_id": "physics/0610268",
    "authors": [
      "T. Fujita",
      "S. Kanamaki",
      "A. Kusaka",
      "S. Oshima"
    ],
    "categories": [
      "physics.gen-ph"
    ],
    "title": "Mistery of Real Scalar Klein-Gordon Field",
    "url": "https://arxiv.org/abs/physics/0610268"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "ded75b6c-d001-4fb5-b533-a4906f5ea145",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}