{
  "annotation_id": "e39b9278-cecb-4785-8aaa-a1b0c4f0b54d",
  "date_created": "2026-03-02T18:02:19.680000Z",
  "date_modified": "2026-03-02T18:02:19.680000Z",
  "file_hash": "dc027cc62039d069ae990aeb32535044d51aabf91f88a821e36d4c21d6bf6ab9",
  "private": false,
  "record": {
    "abstract": "It is shown that a highly phase sensitive polarization squeezed (2n-1)-photon\nstate can be generated by subtracting a diagonally polarized photon from the 2n\nphoton component generated in collinear type II downconversion. This\npolarization wedge state has the interesting property that its photon number\ndistribution in the horizontal and vertical polarizations remains sharply\ndefined for phase shifts of up to 1/n between the circularly polarized\ncomponents. Phase shifts at the Heisenberg limit are therefore observed as\nnearly deterministic transfers of a single photon between the horizontal and\nvertical polarization components.",
    "arxiv_id": "quant-ph/0510005",
    "authors": [
      "Holger F. Hofmann"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1103/PhysRevA.74.013808",
    "journal_ref": "Phys. Rev. A 74, 013808 (2006)",
    "title": "Generation of a highly phase sensitive polarization squeezed N-photon   state by collinear parametric downconversion and coherent photon subtraction",
    "url": "https://arxiv.org/abs/quant-ph/0510005"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "df6d1455-43e4-480e-9e36-3b657ffca859",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}