Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Kelvin-Helmholtz instability in two-component Bose gases on a lattice   We explore the stability of the interface between two phase-separated Bose
gases in relative motion on a lattice. Gross-Pitaevskii-Bogoliubov theory and
the Gutzwiller ansatz are employed to study the short- and long-time stability
properties. The underlying lattice introduces effects of discreteness, broken
spatial symmetry, and strong correlations, all three of which are seen to have
considerable qualitative effects on the Kelvin-Helmholtz instability.
Discreteness is found to stabilize low flow velocities, because of the finite
energy associated with displacing the interface. Broken spatial symmetry
introduces a dependence not only on the relative flow velocity, but on the
absolute velocities. Strong correlations close to a Mott transition will stop
the Kelvin-Helmholtz instability from affecting the bulk density and creating
turbulence; instead, the instability will excite vortices with Mott-insulator
filled cores.

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The categories of this paper are: chem-ph
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The categories of this paper are: funct-an
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The categories of this paper are: nucl-ex
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The categories of this paper are: gr-qc
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The categories of this paper are: atom-ph
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The categories of this paper are: eess
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The categories of this paper are: comp-gas
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The categories of this paper are: dg-ga
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The categories of this paper are: hep-ex
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The categories of this paper are: cs
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The categories of this paper are: math
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The categories of this paper are: adap-org
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The categories of this paper are: nlin
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The categories of this paper are: plasm-ph
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The categories of this paper are: q-bio
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The categories of this paper are: solv-int