Departing from thermality of analogue Hawking radiation in a Bose-Einstein condensate - Archive ouverte HAL
Article Dans Une Revue Physical Review Letters Année : 2020

Departing from thermality of analogue Hawking radiation in a Bose-Einstein condensate

Résumé

We study the quantum fluctuations in a one-dimensional Bose-Einstein condensate realizing an analogous acoustic black hole. The taking into account of evanescent channels and of zero modes makes it possible to accurately reproduce recent experimental measurements of the density correlation function. We discuss the determination of Hawking temperature and show that in our model the analogous radiation presents some significant departure from thermality.

Dates et versions

hal-02317273 , version 1 (15-10-2019)

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M. Isoard, N. Pavloff. Departing from thermality of analogue Hawking radiation in a Bose-Einstein condensate. Physical Review Letters, 2020, 124 (6), pp.060401. ⟨10.1103/PhysRevLett.124.060401⟩. ⟨hal-02317273⟩
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