PT Journal
AU Boiron, D
   Fabbri, A
   Larre, PE
   Pavloff, N
   Westbrook, CI
   Zin, P
TI Quantum Signature of Analog Hawking Radiation in Momentum Space
SO Physical Review Letters
JI Phys. Rev. Lett.
PY 2015
BP 025301
EP 5pp
VL 115
IS 2
DI 10.1103/PhysRevLett.115.025301
LA English
AB 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.
ER