{
  "id": "1308.3588",
  "version": "v2",
  "published": "2013-08-16T10:00:21.000Z",
  "updated": "2013-12-20T12:22:36.000Z",
  "title": "Interactions in dye-microcavity photon condensates and the prospects for their observation",
  "authors": [
    "R. A. Nyman",
    "M. H. Szymanska"
  ],
  "journal": "Phys. Rev. A 89, 033844 (2014)",
  "doi": "10.1103/PhysRevA.89.033844",
  "categories": [
    "quant-ph",
    "cond-mat.quant-gas"
  ],
  "abstract": "We derive the equation of motion for a Bose-Einstein condensate of photons in a dye-microcavity system, starting from Maxwell's equations. Our theory takes into account mirror shape, Kerr-type intensity-dependent refractive index and incoherent pumping and loss. The resulting equation is remarkably similar to the Gross-Pitaevskii equation for exciton-polariton condensates, despite the different microscopic origins. We calculate the incoherent photoluminescence spectrum of the photon condensate which shows the Bogoliubov-type excitations around the mean-field at thermal equilibrium. Both open and closed-system models are presented to account for, respectively dissipation and inhomogeneities. Considering realistic parameters and experimental resolution, we estimate that by observing the angle-resolved spectrum of incoherent photoluminescence it is possible to resolve dimensionless interaction parameters of order $10^{-5}$, two orders of magnitude below current estimates. Thus we expect that this technique will lead to accurate measurements of the interactions in photon condensates.",
  "revisions": [
    {
      "version": "v2",
      "updated": "2013-12-20T12:22:36.000Z"
    }
  ],
  "analyses": {
    "subjects": [
      "42.50.Ct",
      "03.75.Hh",
      "67.90.+z"
    ],
    "keywords": [
      "dye-microcavity photon condensates",
      "observation",
      "incoherent photoluminescence spectrum",
      "resolve dimensionless interaction parameters",
      "kerr-type intensity-dependent refractive index"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "publisher": "APS",
      "journal": "Physical Review A",
      "year": 2014,
      "month": "Mar",
      "volume": 89,
      "number": 3,
      "pages": "033844"
    },
    "note": {
      "typesetting": "TeX",
      "pages": 0,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "adsabs": "2014PhRvA..89c3844N"
    }
  }
}