{
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  "date_created": "2026-03-02T18:02:47.319000Z",
  "date_modified": "2026-03-02T18:02:47.319000Z",
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  "record": {
    "abstract": "Quantum field theory is assumed to be gauge invariant. It is shown that for a\nDirac field the assumption of gauge invariance impacts on the way the vacuum\nstate is defined. It is shown that the conventional definition of the vacuum\nstate must be modified to take into account the requirements of gauge\ninvariance.",
    "arxiv_id": "quant-ph/9905021",
    "authors": [
      "Dan Solomon"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1139/cjp-76-2-111",
    "journal_ref": "Can.J.Phys. 76 (1998) 111-127",
    "title": "Gauge invariance and the vacuum state",
    "url": "https://arxiv.org/abs/quant-ph/9905021"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "a5f39a70-42e5-472a-928b-a4effc03cd63",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}