{
  "annotation_id": "abb4d46d-c390-4334-a8c5-3559ef664724",
  "date_created": "2026-03-02T18:02:09.605000Z",
  "date_modified": "2026-03-02T18:02:09.605000Z",
  "file_hash": "b5f7c05f2688e5c78f1b0df6804cee0f4ed8371222dab6c0b3e6a6e289b59d2d",
  "private": false,
  "record": {
    "abstract": "We show that any pure, two-mode, $N$-photon state with $N$ odd or equal to\ntwo can be transformed into an orthogonal state using only linear optics.\nAccording to a recently suggested definition of polarization degree, this\nimplies that all such states are fully polarized. This is also found to be true\nfor any pure, two-mode, energy eigenstate belonging to a two-dimensional SU(2)\norbit. Complete two- and three-photon bases whose basis states are related by\nonly phase shifts or geometrical rotations are also derived.",
    "arxiv_id": "quant-ph/0407184",
    "authors": [
      "Anita Sehat",
      "Jonas S\u00f6derholm",
      "Gunnar Bj\u00f6rk",
      "Pedro Espinoza",
      "Andrei B. Klimov",
      "Luis L. S\u00e1nchez-Soto"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1103/PhysRevA.71.033818",
    "journal_ref": "Phys. Rev. A 71 (2005) 033818",
    "title": "Quantum polarization properties of two-mode energy eigenstates",
    "url": "https://arxiv.org/abs/quant-ph/0407184"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "119d2644-cef3-45f6-8aaa-504b768e3f14",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}