Physics – Condensed Matter – Other Condensed Matter
Scientific paper
2008-05-09
Phys. Rev. A 78 (2008) 021601(R)
Physics
Condensed Matter
Other Condensed Matter
4 pages, no figures, revised version
Scientific paper
10.1103/PhysRevA.78.021601
We determine the feasibility of detecting analogue Hawking radiation in a Bose-Einstein condensate in the presence of atom loss induced heating. We find that phonons created by three-body losses overshadow those due to analogue Hawking radiation. To overcome this problem, three-body losses may have to be suppressed, for example as proposed by Search et al. [Phys. Rev. Lett. 92 140401 (2004)]. The reduction of losses to a few percent of their normal rate is typically sufficient to suppress the creation of loss phonons on the time scale of a fast analogue Hawking phonon detection.
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