{
  "annotation_id": "3cb04cc2-85b7-41c3-b6d8-5d4d3de93490",
  "date_created": "2026-03-02T18:01:56.514000Z",
  "date_modified": "2026-03-02T18:01:56.514000Z",
  "file_hash": "fce43e1b0c2f1f32319bc4f36af608b0820b4d0fec66707d90c81da39d324286",
  "private": false,
  "record": {
    "abstract": "The nonlinear photon-photon interaction mediated by a single two-level atom\nis studied theoretically based on a one-dimensional model of the field-atom\ninteraction. This model allows us to determine the effects of an atomic\nnonlinearity on the spatiotemporal coherence of a two photon state.\nSpecifically, the complete two photon output wave function can be obtained for\nany two photon input wave function. It is shown that the quantum interference\nbetween the components of the output state associated with different\ninteraction processes causes bunching and anti-bunching in the two photon\nstatistics. This theory may be useful for various applications in photon\nmanipulation, e.g. quantum information processing using photonic qubits,\nquantum nondemolition measurements, and the generation of entangled photons.",
    "arxiv_id": "quant-ph/0301124",
    "authors": [
      "Kunihiro Kojima",
      "Holger F. Hofmann",
      "Shigeki Takeuchi",
      "Keiji Sasaki"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1103/PhysRevA.68.013803",
    "journal_ref": "Phys. Rev. A 68, 013803 (2003)",
    "title": "Nonlinear interaction of two photons at a one-dimensional atom:   spatiotemporal quantum coherence in the emitted field",
    "url": "https://arxiv.org/abs/quant-ph/0301124"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "851950e3-387e-4807-a44c-e4bbc7da2e0d",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}