Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Spontaneous generation of quantum turbulence through the decay of a
  giant vortex in a two-dimensional superfluid   We show the generation of two-dimensional quantum turbulence through
simulations of a giant vortex decay in a trapped Bose-Einstein condensate.
While evaluating the incompressible kinetic energy spectra of the quantum fluid
described by the Gross-Pitaevskii equation, a bilinear form in a log-log plot
is verified. A characteristic scaling behavior for small momenta shows
resemblance to the Kolmogorov $k^{-5/3}$ law, while for large momenta it
reassures the universal behavior of the core-size $k^{-3}$ power-law. This
indicates a mechanism of energy transportation consistent with an inverse
cascade. The feasibility of the described physical system with the currently
available experimental techniques to create giant vortices opens up a new route
to explore quantum turbulence.

13
The categories of this paper are: quant-ph
12
The categories of this paper are: nucl-th
28
The categories of this paper are: alg-geom
37
The categories of this paper are: supr-con
33
The categories of this paper are: plasm-ph
10
The categories of this paper are: q-bio
24
The categories of this paper are: dg-ga
16
The categories of this paper are: stat
32
The categories of this paper are: atom-ph
31
The categories of this paper are: ao-sci
5
The categories of this paper are: gr-qc
20
The categories of this paper are: acc-phys
6
The categories of this paper are: astro-ph
26
The categories of this paper are: bayes-an
15
The categories of this paper are: nucl-ex
21
The categories of this paper are: adap-org