Hawking radiation in dispersive theories, the two regimes (Articolo in rivista)

Type
Label
  • Hawking radiation in dispersive theories, the two regimes (Articolo in rivista) (literal)
Anno
  • 2012-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1103/PhysRevD.85.124027 (literal)
Alternative label
  • Finazzi Stefano [ 1,2 ] ; Parentani Renaud [ 3 ] (2012)
    Hawking radiation in dispersive theories, the two regimes
    in Physical review. D, Particles, fields, gravitation, and cosmology
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Finazzi Stefano [ 1,2 ] ; Parentani Renaud [ 3 ] (literal)
Pagina inizio
  • 124027 (literal)
Pagina fine
  • 124027 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 85 (literal)
Rivista
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroFascicolo
  • 12 (literal)
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • [ 1 ] INO CNR BEC Ctr, I-38123 Povo, Italy [ 2 ] Univ Trent, Dipartimento Fis, I-38123 Povo, Italy [ 3 ] Univ Paris 11, CNRS UMR 8627, Phys Theor Lab, F-91405 Orsay, France (literal)
Titolo
  • Hawking radiation in dispersive theories, the two regimes (literal)
Abstract
  • We compute the black hole radiation spectrum in the presence of high-frequency dispersion in a large set of situations. In all cases, the spectrum diverges like the inverse of the Killing frequency. When studying the low-frequency spectrum, we find only two regimes: an adiabatic one where the corrections with respect to the standard temperature are small, and an abrupt one regulated by dispersion, in which the near-horizon metric can be replaced by step functions. The transition from one regime to the other is governed by a single parameter which also governs the net redshift undergone by dispersive modes. These results can be used to characterize the quasiparticles spectrum of recent and future experiments aiming to detect the analogue Hawking radiation. They also apply to theories of quantum gravity which violate Lorentz invariance. (literal)
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