Quantum fluctuations around black hole horizons in Bose-Einstein condensates
Quantum Gases
2012-01-19 v2 General Relativity and Quantum Cosmology
Pattern Formation and Solitons
Abstract
We study several realistic configurations allowing to realize an acoustic horizon in the flow of a one dimensional Bose-Einstein condensate. In each case we give an analytical description of the flow pattern, of the spectrum of Hawking radiation and of the associated quantum fluctuations. Our calculations confirm that the non local correlations of the density fluctuations previously studied in a simplified model provide a clear signature of Hawking radiation also in realistic configurations. In addition we explain by direct computation how this non local signal relates to short range modifications of the density correlations.
Cite
@article{arxiv.1110.4464,
title = {Quantum fluctuations around black hole horizons in Bose-Einstein condensates},
author = {P. -É. Larré and A. Recati and I. Carusotto and N. Pavloff},
journal= {arXiv preprint arXiv:1110.4464},
year = {2012}
}