@Article{Anderson_etal2014, author="Anderson, P. R. and Balbinot, R. and Fabbri, A. and Parentani, R.", title="Gray-body factor and infrared divergences in 1D BEC acoustic black holes", journal="Physical Review D", year="2014", publisher="Amer Physical Soc", volume="90", number="10", pages="104044--6pp", abstract="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.", optnote="WOS:000348186700004", optnote="exported from refbase (https://references.ific.uv.es/refbase/show.php?record=2079), last updated on Thu, 12 Feb 2015 10:47:37 +0000", issn="1550-7998", doi="10.1103/PhysRevD.90.104044", opturl="http://arxiv.org/abs/1404.3224", opturl="https://doi.org/10.1103/PhysRevD.90.104044", archivePrefix="arXiv", eprint="1404.3224", language="English" }