Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Counterflow Quantum Turbulence and the Instability in Two-component
  Bose-Einstein Condensates   We theoretically study the nonlinear dynamics of the instability of
counter-superflow in two miscible Bose-Einstein condensates. The condensates
become unstable when the relative velocity exceeds a critical value, which is
called counter-superflow instability. We reveal that the counter-superflow
instability can lead to quantum turbulence by numerically solving the coupled
Gross-Pitaevskii equations. The modes amplified by the instability grow into
solitons and decay into quantized vortices.Eventually, the vortices become
tangled and quantum turbulence of two superfluids. We show that this process
may occur in experiments by investigating the dynamics in a 2D trapped system.

31
The categories of this paper are: ao-sci
36
The categories of this paper are: cmp-lg
14
The categories of this paper are: math-ph
13
The categories of this paper are: quant-ph
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The categories of this paper are: hep-lat
29
The categories of this paper are: funct-an
10
The categories of this paper are: q-bio
33
The categories of this paper are: plasm-ph
20
The categories of this paper are: acc-phys
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The categories of this paper are: econ
3
The categories of this paper are: physics
27
The categories of this paper are: comp-gas
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The categories of this paper are: eess
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The categories of this paper are: alg-geom
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The categories of this paper are: atom-ph
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The categories of this paper are: q-fin