2014•arXiv (Cornell University)Open access

Momentum correlations as signatures of Hawking radiation in Bose-Einstein condensates

Denis Boiron, Alessandro Fabbri, Pierre-Élie Larré, Nicolas Pavloff, C. I. Westbrook, P. Ziń

Abstract

We consider a sonic analog of a black hole realized in the one-dimensional flow of a Bose-Einstein condensate. We demonstrate that the momentum correlators provide clear evidences for the acoustic Hawking radiation. We address the experimental relevance of our results and discuss how the Hawking signal can be reinforced by a step of dynamical Casimir amplification.

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Key concepts: Hawking radiation, Hawking, Physics, Casimir effect, Bose–Einstein condensate, Momentum (technical analysis), Black hole (networking), Quantum electrodynamics