Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: A low-dimensional analogue of holographic baryons   Baryons in holographic QCD correspond to topological solitons in the bulk.
The most prominent example is the Sakai-Sugimoto model, where the bulk soliton
in the five-dimensional spacetime of AdS-type can be approximated by the flat
space self-dual Yang-Mills instanton with a small size. Recently, the validity
of this approximation has been verified by comparison with the numerical field
theory solution. However, multi-solitons and solitons with finite density are
currently beyond numerical field theory computations. Various approximations
have been applied to investigate these important issues and have led to
proposals for finite density configurations that include dyonic salt and
baryonic popcorn. Here we introduce and investigate a low-dimensional analogue
of the Sakai-Sugimoto model, in which the bulk soliton can be approximated by a
flat space sigma model instanton. The bulk theory is a baby Skyrme model in a
three-dimensional spacetime with negative curvature. The advantage of the
lower-dimensional theory is that numerical simulations of multi-solitons and
finite density solutions can be performed and compared with flat space
instanton approximations. In particular, analogues of dyonic salt and baryonic
popcorn configurations are found and analysed.

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The categories of this paper are: cond-mat
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The categories of this paper are: nucl-ex
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The categories of this paper are: atom-ph
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The categories of this paper are: alg-geom
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The categories of this paper are: q-fin
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The categories of this paper are: hep-ph
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The categories of this paper are: funct-an
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The categories of this paper are: q-bio
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The categories of this paper are: hep-ex
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The categories of this paper are: dg-ga
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The categories of this paper are: math
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The categories of this paper are: chao-dyn
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The categories of this paper are: gr-qc
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The categories of this paper are: astro-ph
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The categories of this paper are: stat
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The categories of this paper are: econ