Hawking radiation from laser filaments?

Details Hawking radiation from laser filaments? Hawking radiation from laser filaments?

2012-02-29

arxiv.org/abs/1202.6492v1

Physics

Quantum Physics

10 pages RevTeX, 1 figure

Scientific paper

Belgiorno {\em et al} have reported on experiments aiming at the detection of (the analogue of) Hawking radiation using laser filaments [F. Belgiorno {\em et al}, Phys.\ Rev.\ Lett.\ {\bf 105}, 203901 (2010)]. They sent intense focused Bessel pulses into a non-linear dielectric medium in order to change its refractive index via the Kerr effect. We study this scenario with the parameters of their experiment and find that the effective metric does not quite correspond to black hole evaporation but obeys more similarities to cosmological particle creation -- even though this effect can probably not quite explain the observations. Modelling Hawking radiation would require much stronger pulses.

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