{
  "id": "1806.00062",
  "version": "v1",
  "published": "2018-05-31T19:23:06.000Z",
  "updated": "2018-05-31T19:23:06.000Z",
  "title": "Observation of three-body correlations for photons coupled to a Rydberg superatom",
  "authors": [
    "Nina Stiesdal",
    "Jan Kumlin",
    "Kevin Kleinbeck",
    "Philipp Lunt",
    "Christoph Braun",
    "Asaf Paris-Mandoki",
    "Christoph Tresp",
    "Hans Peter Büchler",
    "Sebastian Hofferberth"
  ],
  "categories": [
    "quant-ph"
  ],
  "abstract": "We report on the experimental observation of non-trivial three-photon correlations imprinted onto initially uncorrelated photons through interaction with a single Rydberg superatom. Exploiting the Rydberg blockade mechanism, we turn a cold atomic cloud into a single effective emitter with collectively enhanced coupling to a focused photonic mode which gives rise to clear signatures in the connected part of the three-body correlation function of the out-going photons. We show that our results are in good agreement with a quantitative model for a single, strongly coupled Rydberg superatom. Furthermore, we present an idealized but exactly solvable model of a single two-level system coupled to a photonic mode, which allows for an interpretation of our experimental observations in terms of bound states and scattering states.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2018-05-31T19:23:06.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "experimental observation",
      "single two-level system",
      "single rydberg superatom",
      "rydberg blockade mechanism",
      "non-trivial three-photon correlations"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 0,
      "language": "en",
      "license": "arXiv",
      "status": "editable"
    }
  }
}