Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Mechanocaloric and Thermomechanical Effects in Bose-Einstein Condensed
  Systems   In this paper we extend previous hydrodynamic equations, governing the motion
of Bose-Einstein-condensed fluids, to include temperature effects. This allows
us to analyze some differences between a normal fluid and a
Bose-Einstein-condensed one. We show that, in close analogy with superfluid
He-4, a Bose-Einstein-condensed fluid exhibits the mechanocaloric and
thermomechanical effects. In our approach we can explain both effects without
using the hypothesis that the Bose-Einstein-condensed fluid has zero entropy.
Such ideas could be investigated in existing experiments.

15
The categories of this paper are: nucl-ex
23
The categories of this paper are: solv-int
34
The categories of this paper are: chem-ph
12
The categories of this paper are: nucl-th
1
The categories of this paper are: cs
24
The categories of this paper are: dg-ga
21
The categories of this paper are: adap-org
8
The categories of this paper are: hep-ex
26
The categories of this paper are: bayes-an
6
The categories of this paper are: astro-ph
25
The categories of this paper are: patt-sol
32
The categories of this paper are: atom-ph
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The categories of this paper are: funct-an
10
The categories of this paper are: q-bio
2
The categories of this paper are: math
31
The categories of this paper are: ao-sci