Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Holographic Superfluid Solitons with Backreaction   Solitons are important nonperturbative excitations in superfluids. For
holographic superfluids, we numerically construct dark solitons that have the
symmetry-restored phase at their core. A central point is that we include the
gravitational back-reaction of the matter fields, which becomes important at
low temperatures. We study in detail the properties of these solitons under
variation of the back-reaction strength via tuning the gravitational constant.
In particular, the depletion fraction of the particle number density at the
core of the solitons is carefully investigated. In agreement with the
probe-limit analysis, the depletion fraction shows the same qualitative
behavior as in Bogoliubov-de Gennes (BdG) theory, even if the back-reaction is
included. We find that the depletion decreases with increasing back-reaction
strength. Moreover, the inclusion of back-reaction enables us to obtain the
effective energy density of solitons within holography, which together with an
evaluation of the surface tension leads to a simple physical explanation for
the snake instability of dark solitons.

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The categories of this paper are: mtrl-th
26
The categories of this paper are: bayes-an
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The categories of this paper are: alg-geom
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The categories of this paper are: plasm-ph
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The categories of this paper are: solv-int
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The categories of this paper are: stat
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The categories of this paper are: atom-ph
34
The categories of this paper are: chem-ph
4
The categories of this paper are: cond-mat
29
The categories of this paper are: funct-an
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The categories of this paper are: supr-con
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The categories of this paper are: nucl-th
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The categories of this paper are: comp-gas
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The categories of this paper are: math
30
The categories of this paper are: q-alg
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The categories of this paper are: eess