Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: A superfluid gyroscope with cold atomic gases   A trapped Bose-Einstein condensed atomic gas containing a quantized vortex is
predicted to exhibit precession after a sudden rotation of the confining
potential.
  The equations describing the motion of the condensate are derived and the
effects of superfluidity explicitly pointed out. The dependence of the
precession frequency on the relevant parameters of the problem is discussed.
  The proposed gyroscope is well suited to explore rotational effects at the
level of single quanta of circulation.

27
The categories of this paper are: comp-gas
26
The categories of this paper are: bayes-an
13
The categories of this paper are: quant-ph
29
The categories of this paper are: funct-an
22
The categories of this paper are: chao-dyn
28
The categories of this paper are: alg-geom
31
The categories of this paper are: ao-sci
30
The categories of this paper are: q-alg
21
The categories of this paper are: adap-org
0
The categories of this paper are: hep-ph
34
The categories of this paper are: chem-ph
8
The categories of this paper are: hep-ex
12
The categories of this paper are: nucl-th
11
The categories of this paper are: hep-lat
14
The categories of this paper are: math-ph
35
The categories of this paper are: mtrl-th