Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Vortex waves in trapped Bose-Einstein condensates   We have theoretically studied vortex waves of Bose-Einstein condensates in
elongated harmonic traps. Our focus is on the axisymmetric varicose waves and
helical Kelvin waves of singly quantized vortex lines. Growth and decay
dynamics of both types of vortex waves are discussed. We propose a method to
experimentally create these vortex waves on demand.

17
The categories of this paper are: q-fin
24
The categories of this paper are: dg-ga
33
The categories of this paper are: plasm-ph
15
The categories of this paper are: nucl-ex
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The categories of this paper are: adap-org
12
The categories of this paper are: nucl-th
1
The categories of this paper are: cs
25
The categories of this paper are: patt-sol
32
The categories of this paper are: atom-ph
14
The categories of this paper are: math-ph
30
The categories of this paper are: q-alg
37
The categories of this paper are: supr-con
10
The categories of this paper are: q-bio
31
The categories of this paper are: ao-sci
11
The categories of this paper are: hep-lat
6
The categories of this paper are: astro-ph