{
  "annotation_id": "86e0eff6-8950-4355-b40e-2862e194fb7b",
  "date_created": "2026-03-02T18:01:52.571000Z",
  "date_modified": "2026-03-02T18:01:52.571000Z",
  "file_hash": "bc7fac2665aa4b7ab1eb9f9d41774ddd09e71a641d251d619b3705f3558d2127",
  "private": false,
  "record": {
    "abstract": "A suitable deformation of the Hopf algebra of the creation and annihilation\noperators for a complex scalar field, initially quantized in Minkowski\nspace--time, induces the canonical quantization of the same field in a generic\ngravitational background. The deformation parameter q turns out to be related\nto the gravitational field. The entanglement of the quantum vacuum appears to\nbe robust against interaction with the environment.",
    "arxiv_id": "quant-ph/0207173",
    "authors": [
      "A. Iorio",
      "G. Lambiase",
      "G. Vitiello"
    ],
    "categories": [
      "quant-ph"
    ],
    "title": "Quantization of scalar fields in curved background, deformed Hopf   algebra and entanglement",
    "url": "https://arxiv.org/abs/quant-ph/0207173"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "bdc04004-cb9f-4f8a-baba-2082443d357f",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}