Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Momentum correlations as signature of sonic Hawking radiation in
  Bose-Einstein condensates   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.

13
The categories of this paper are: quant-ph
6
The categories of this paper are: astro-ph
31
The categories of this paper are: ao-sci
26
The categories of this paper are: bayes-an
28
The categories of this paper are: alg-geom
30
The categories of this paper are: q-alg
11
The categories of this paper are: hep-lat
9
The categories of this paper are: nlin
35
The categories of this paper are: mtrl-th
12
The categories of this paper are: nucl-th
27
The categories of this paper are: comp-gas
32
The categories of this paper are: atom-ph
34
The categories of this paper are: chem-ph
19
The categories of this paper are: eess
18
The categories of this paper are: econ
37
The categories of this paper are: supr-con