title: Cavity-funneled generation of indistinguishable single photons from strongly dissipative quantum emitters.
abstract: We investigate theoretically the generation of indistinguishable single photons from a strongly dissipative quantum system placed inside an optical cavity. The degree of indistinguishability of photons emitted by the cavity is calculated as a function of the emitter-cavity coupling strength and the cavity linewidth. For a quantum emitter subject to strong pure dephasing, our calculations reveal that an unconventional regime of high indistinguishability can be reached for moderate emitter-cavity coupling strengths and high-quality factor cavities. In this regime, the broad spectrum of the dissipative quantum system is funneled into the narrow line shape of the cavity. The associated efficiency is found to greatly surpass spectral filtering effects. Our findings open the path towards on-chip scalable indistinguishable-photon-emitting devices operating at room temperature.
authors.affiliation: Université Grenoble-Alpes, "Nanophysics and Semiconductors" joint team, 38000 Grenoble, France.|CNRS, Institut Néel, "Nanophysics and Semiconductors" joint team, 38000 Grenoble, France.
authors.forename: Thomas
authors.initials: T
authors.lastname: Grange
authors.affiliation: Université Grenoble-Alpes, "Nanophysics and Semiconductors" joint team, 38000 Grenoble, France.|CNRS, Institut Néel, "Nanophysics and Semiconductors" joint team, 38000 Grenoble, France.|CEA, INAC-SP2M, "Nanophysics and Semiconductors" joint team, 38000 Grenoble, France.
authors.forename: Gaston
authors.initials: G
authors.lastname: Hornecker
authors.affiliation: Fakultät für Physik, Ludwig-Maximilians-Universität, Schellingstrasse 4, 80799 München, Germany.
authors.forename: David
authors.initials: D
authors.lastname: Hunger
authors.affiliation: Université Grenoble-Alpes, "Nanophysics and Semiconductors" joint team, 38000 Grenoble, France.|CNRS, Institut Néel, "Nanophysics and Semiconductors" joint team, 38000 Grenoble, France.
authors.forename: Jean-Philippe
authors.initials: JP
authors.lastname: Poizat
authors.affiliation: Université Grenoble-Alpes, "Nanophysics and Semiconductors" joint team, 38000 Grenoble, France.|CEA, INAC-SP2M, "Nanophysics and Semiconductors" joint team, 38000 Grenoble, France.
authors.forename: Jean-Michel
authors.initials: JM
authors.lastname: Gérard
authors.affiliation: CNRS, Laboratoire de Photonique et de Nanostructures, 91460 Marcoussis, France.
authors.forename: Pascale
authors.initials: P
authors.lastname: Senellart
authors.affiliation: Université Grenoble-Alpes, "Nanophysics and Semiconductors" joint team, 38000 Grenoble, France.|CNRS, Institut Néel, "Nanophysics and Semiconductors" joint team, 38000 Grenoble, France.
authors.forename: Alexia
authors.initials: A
authors.lastname: Auffèves