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Momentum correlations as signature of sonic Hawking radiation in Bose-Einstein condensates

by A. Fabbri, N. Pavloff

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Submission summary

Authors (as registered SciPost users): Alessandro Fabbri · Nicolas Pavloff
Submission information
Preprint Link:  (pdf)
Date accepted: 2018-03-24
Date submitted: 2018-03-16 01:00
Submitted by: Pavloff, Nicolas
Submitted to: SciPost Physics
Ontological classification
Academic field: Physics
  • Gravitation, Cosmology and Astroparticle Physics
  • Quantum Physics
Approach: Theoretical


We study the two-body momentum correlation signal in a quasi one dimensional Bose-Einstein condensate in the presence of a sonic horizon. We identify the relevant correlation lines in momentum space and compute the intensity of the corresponding signal. We consider a set of different experimental procedures and identify the specific issues of each measuring process. We show that some inter-channel correlations, in particular the Hawking quantum-partner one, are particularly well adapted for witnessing quantum non-separability, being resilient to the effects of temperature and/or quantum quenches.

Published as SciPost Phys. 4, 019 (2018)

List of changes

Besides the point already discussed in the reply to the referee's comments we added some references, corrected typos and added a new subsection label for clarity

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