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.
Download full-text PDF |
Source |
---|---|
http://dx.doi.org/10.1103/PhysRevLett.115.025301 | DOI Listing |
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!