{
  "annotation_id": "3caebd33-bbdd-4ece-bf03-85706c193c5a",
  "date_created": "2026-03-02T18:02:31.108000Z",
  "date_modified": "2026-03-02T18:02:31.108000Z",
  "file_hash": "7fa401938918195986b8db886619720a4604ad590cb637409f344001452e0811",
  "private": false,
  "record": {
    "abstract": "Cavity quantum electrodynamics (QED) studies the interaction between a\nquantum emitter and a single radiation-field mode. When an atom is in strong\ncoupling with a cavity mode1,2, it is possible to realize key quantum\ninformation processing (QIP) tasks, such as controlled coherent coupling and\nentanglement of distinguishable quantum systems. Realizing these tasks in the\nsolid state is clearly desirable, and coupling semiconductor self-assembled\nquantum dots (QDs) to monolithic optical cavities is a promising route to this\nend. However, validating the efficacy of QDs in QIP applications requires\nconfirmation of the quantum nature of the QD-cavity system in the strong\ncoupling regime. Here we find a confirmation by observing quantum correlations\nin photoluminescence (PL) from a photonic crystal (PC) nanocavity3-5\ninteracting with one, and only one, QD located precisely at the cavity electric\nfield maximum. When off-resonance, photon emission from the cavity mode and QD\nexcitons is anti-correlated at the level of single quanta, proving that the\nmode is driven solely by the QD despite an energy mis-match between cavity and\nexcitons. When tuned into resonance, the exciton and photon enter the\nstrong-coupling regime of cavity-QED and the QD lifetime reduces by a factor of\n120. The photon stream from the cavity becomes anti-bunched, proving that the\ncoupled exciton/photon system is in the quantum anharmonic regime. Our\nobservations unequivocally show that QIP tasks requiring the quantum nonlinear\nregime are achievable in the solid state.",
    "arxiv_id": "quant-ph/0610034",
    "authors": [
      "K. Hennessy",
      "A. Badolato",
      "M. Winger",
      "D. Gerace",
      "M. Atature",
      "S. Gulde",
      "S. Falt",
      "E. L. Hu",
      "A. Imamoglu"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1038/nature05586",
    "title": "Quantum nature of a strongly-coupled single quantum dot-cavity system",
    "url": "https://arxiv.org/abs/quant-ph/0610034"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "8826182f-943f-48e5-83a0-d3c55e4512d5",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}