Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Black-Hole evaporation and Quantum-depletion in Bose-Einstein
  condensates   We study the analogy between the Hawking radiation in Black-Holes and the
Quantum depletion process of a Bose-Einstein condensate by using the Bogoliubov
transformations method. We find that the relation between the Bogoliubov
coefficients is similar in both cases (in the appropriate regimes). We then
connect the condensate variables with those associated to the Black-Hole,
demonstrating then that the zero temperature regime of the condensate is
equivalent to the existence of an event horizon in gravity.

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The categories of this paper are: patt-sol
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The categories of this paper are: solv-int
8
The categories of this paper are: hep-ex
30
The categories of this paper are: q-alg
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The categories of this paper are: mtrl-th
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The categories of this paper are: acc-phys
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The categories of this paper are: alg-geom
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The categories of this paper are: bayes-an
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The categories of this paper are: eess
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The categories of this paper are: quant-ph
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The categories of this paper are: supr-con
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The categories of this paper are: nucl-ex
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The categories of this paper are: q-fin
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The categories of this paper are: astro-ph
34
The categories of this paper are: chem-ph
29
The categories of this paper are: funct-an