{
  "annotation_id": "a5c8ee4c-d0da-4427-b7aa-b48e9a95b9c6",
  "date_created": "2026-03-02T18:02:06.396000Z",
  "date_modified": "2026-03-02T18:02:06.396000Z",
  "file_hash": "ff975b5f933714a30a89fe509e3c0a0cdb8423e8f77ae8cd0cd4c8c5b6599e30",
  "private": false,
  "record": {
    "abstract": "We investigate the single mode operation of a quantum optical nonlinear \\pi\nphase shift gate implemented by a single two-level atom in one-dimensional free\nspace. Since the single mode property of the input photons at the atom is not\npreserved in the interaction at the atom, we analyze the effeciency of single\nmode operation that can still be achieved. We show how the input pulse shape\ncan be optimized to obtain high efficiencies for the nonlinear single mode\noperation. With this analysis, we obtain an optimal single mode transmittance\nper photon of 78% for the successful nonliner \\pi phase shift operation.",
    "arxiv_id": "quant-ph/0405121",
    "authors": [
      "Kunihiro Kojima",
      "Holger F. Hofmann",
      "Shigeki Takeuchi",
      "Keiji Sasaki"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1103/PhysRevA.70.013810",
    "journal_ref": "Phys. Rev. A 70, 013810(2004) (6 pages)",
    "title": "Efficiencies for the single mode operation of a quantum optical   nonlinear shift gate",
    "url": "https://arxiv.org/abs/quant-ph/0405121"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "14daeab2-6b1c-4a49-a6cd-4e152e6dbf90",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}