%0 Journal Article
%T Quantum Signature of Analog Hawking Radiation in Momentum Space
%A Boiron, D.
%A Fabbri, A.
%A Larre, P. E.
%A Pavloff, N.
%A Westbrook, C. I.
%A Zin, P.
%J Physical Review Letters
%D 2015
%V 115
%N 2
%I Amer Physical Soc
%@ 0031-9007
%G English
%F Boiron_etal2015
%O WOS:000357500500004
%O exported from refbase (https://references.ific.uv.es/refbase/show.php?record=2294), last updated on Thu, 23 Jul 2015 18:13:09 +0000
%X 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.
%R 10.1103/PhysRevLett.115.025301
%U http://arxiv.org/abs/1406.5229
%U https://doi.org/10.1103/PhysRevLett.115.025301
%P 025301-5pp