Acoustic black hole in a stationary hydrodynamic flow of microcavity polaritons (Articolo in rivista)

Type
Label
  • Acoustic black hole in a stationary hydrodynamic flow of microcavity polaritons (Articolo in rivista) (literal)
Anno
  • 2015-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1103/PhysRevLett.114.036402 (literal)
Alternative label
  • Nguyen, Hai Son; Gerace, Dario; Carusotto, Iacopo; Sanvitto, Daniele; Galopin, Elisabeth; Lemaître, Aristide; Sagnes, Isabelle; Bloch, Jacqueline F.; Amo, Alberto (2015)
    Acoustic black hole in a stationary hydrodynamic flow of microcavity polaritons
    in Physical review letters (Print)
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Nguyen, Hai Son; Gerace, Dario; Carusotto, Iacopo; Sanvitto, Daniele; Galopin, Elisabeth; Lemaître, Aristide; Sagnes, Isabelle; Bloch, Jacqueline F.; Amo, Alberto (literal)
Pagina inizio
  • 036402 (literal)
Pagina fine
  • 036402 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#url
  • http://www.scopus.com/record/display.url?eid=2-s2.0-84921506432&origin=inward (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 114 (literal)
Rivista
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#pagineTotali
  • 5 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroFascicolo
  • 3 (literal)
Note
  • Scopu (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • LPN Laboratoire de Photonique et de Nanostructures; Universita degli Studi di Pavia; Universita degli Studi di Trento; Istituto Nanoscienze-CNR (literal)
Titolo
  • Acoustic black hole in a stationary hydrodynamic flow of microcavity polaritons (literal)
Abstract
  • We report an experimental study of superfluid hydrodynamic effects in a one-dimensional polariton fluid flowing along a laterally patterned semiconductor microcavity and hitting a micron-sized engineered defect. At high excitation power, superfluid propagation effects are observed in the polariton dynamics; in particular, a sharp acoustic horizon is formed at the defect position, separating regions of sub- and supersonic flow. Our experimental findings are quantitatively reproduced by theoretical calculations based on a generalized Gross-Pitaevskii equation. Promising perspectives to observe Hawking radiation via photon correlation measurements are illustrated. (literal)
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