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arXiv · 0711.4520

Non-local density correlations as signal of Hawking radiation in BEC acoustic black holes

Roberto Balbinot·Alessandro Fabbri·Serena Fagnocchi·Alessio Recati·Iacopo Carusotto
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Abstract

We have used the analogy between gravitational systems and non-homogeneous fluid flows to calculate the density-density correlation function of an atomic Bose-Einstein condensate in the presence of an acoustic black hole. The emission of correlated pairs of phonons by Hawking-like process results into a peculiar long-range density correlation. Quantitative estimations of the effect are provided for realistic experimental configurations.

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Roberto Balbinot, Alessandro Fabbri, Serena Fagnocchi, Alessio Recati, Iacopo Carusotto. 2008-05-12. Non-local density correlations as signal of Hawking radiation in BEC acoustic black holes. https://doi.org/10.1103/physreva.78.021603

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