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Quantum Signature of Analog Hawking Radiation in Momentum Space

Denis Boiron 1 Fabbri Alessandro 2 Larré Pierre-Elie 3 Nicolas Pavloff 4 Christoph I. Westbrook 1 Pawel Zin 5 
1 Laboratoire Charles Fabry / Optique atomique
LCF - Laboratoire Charles Fabry
2 Enrico Fermi Center for Study and Research | Museo Storico della Fisica e Centro Studi e Ricerche Enrico Fermi
3 UNITN - Università degli Studi di Trento
4 LPTMS - Laboratoire de Physique Théorique et Modèles Statistiques
5 NCBJ - National Center for Nuclear Research [Warsaw]
Abstract : We consider a sonic analog of a black hole realized in the one-dimensional flow of a Bose-Einstein condensate. Our theoretical analysis demonstrates that one- and two-body momentum distributions accessible by present-day experimental techniques provide clear direct evidence (i) of the occurrence of a sonic horizon, (ii) of the associated acoustic Hawking radiation, and (iii) of the quantum nature of the Hawking process. The signature of the quantum behavior persists even at temperatures larger than the chemical potential.
Keywords : analog gravity Hawking radiation phonons Bose-Einstein condensate
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https://hal-iogs.archives-ouvertes.fr/hal-01174624
Contributor : Christoph I Westbrook Connect in order to contact the contributor
Submitted on : Thursday, July 9, 2015 - 1:47:54 PM
Last modification on : Friday, August 19, 2022 - 3:36:05 PM

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Denis Boiron, Fabbri Alessandro, Larré Pierre-Elie, Nicolas Pavloff, Christoph I. Westbrook, et al.. Quantum Signature of Analog Hawking Radiation in Momentum Space. Physical Review Letters, American Physical Society, 2015, 115 (2), pp.025301. ⟨10.1103/PhysRevLett.115.025301⟩. ⟨hal-01174624⟩

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