TY  - JOUR
AU  - Anderson, P. R.
AU  - Balbinot, R.
AU  - Fabbri, A.
AU  - Parentani, R.
PY  - 2014
DA  - 2014//
TI  - Gray-body factor and infrared divergences in 1D BEC acoustic black holes
T2  - Phys. Rev. D
JO  - Physical Review D
SP  - 104044
EP  - 6pp
VL  - 90
IS  - 10
PB  - Amer Physical Soc
AB  - It is shown that the gray-body factor for a one-dimensional elongated Bose-Einstein condensate (BEC) acoustic black hole with one horizon does not vanish in the low-frequency (omega -> 0) limit. This implies that the analog Hawking radiation is dominated by the emission of an infinite number (1/omega) of soft phonons in contrast with the case of a Schwarzschild black hole where the gray-body factor vanishes as omega -> 0 and the spectrum is not dominated by low-energy particles. The infrared behaviors of certain correlation functions are also discussed.
SN  - 1550-7998
UR  - http://arxiv.org/abs/1404.3224
UR  - https://doi.org/10.1103/PhysRevD.90.104044
DO  - 10.1103/PhysRevD.90.104044
LA  - English
N1  - WOS:000348186700004
ID  - Anderson_etal2014
ER  -