{
  "id": "1808.00433",
  "version": "v1",
  "published": "2018-08-01T17:30:34.000Z",
  "updated": "2018-08-01T17:30:34.000Z",
  "title": "Bose condensation of direct excitons in an off-resonant cavity at elevated temperatures",
  "authors": [
    "Nina S. Voronova",
    "Igor L. Kurbakov",
    "Yurii E. Lozovik"
  ],
  "comment": "5 pages of the main text, and 5 pages of the Supplemental Material. 6 figures",
  "categories": [
    "cond-mat.mes-hall",
    "cond-mat.quant-gas"
  ],
  "abstract": "We theoretically predict the possibility to observe a macroscopically coherent state of two-dimensional direct excitons at high temperatures, thanks to the dramatic increase of their lifetime in the cavities designed to inhibit exciton recombination. For a single GaAs quantum well embedded in a photonic layered heterostructure with subwavelength period, we show the exciton radiative decay to be strongly suppressed. Quantum hydrodynamic approach is used to study the Berezinskii-Kosterlitz-Thouless crossover in a finite exciton system with intermediate densities. As the system is cooled down below the estimated critical temperatures, the drastic growth of the correlation length is accompanied by a manyfold increase of the photoluminescence intensity.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2018-08-01T17:30:34.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "bose condensation",
      "off-resonant cavity",
      "elevated temperatures",
      "quantum hydrodynamic approach",
      "inhibit exciton recombination"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 5,
      "language": "en",
      "license": "arXiv",
      "status": "editable"
    }
  }
}