Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Antiferromagnetic hedgehogs with superconducting cores   Excitations of the antiferromagnetic state that resemble antiferromagnetic
hedgehogs at large distances but are predominantly superconducting inside a
core region are discussed within the context of Zhang's SO(5)-symmetry-based
approach to the physics of high-temperature superconducting materials.
Nonsingular, in contrast with their hedgehog cousins in pure
antiferromagnetism, these texture excitations are what hedgehogs become when
the antiferromagnetic order parameter is permitted to "escape" into
superconducting directions. The structure of such excitations is determined in
a simple setting, and a number of their experimental implications are examined.

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The categories of this paper are: solv-int
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The categories of this paper are: chao-dyn
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The categories of this paper are: hep-ex
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The categories of this paper are: stat
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The categories of this paper are: hep-th
2
The categories of this paper are: math
35
The categories of this paper are: mtrl-th
32
The categories of this paper are: atom-ph
10
The categories of this paper are: q-bio
6
The categories of this paper are: astro-ph
3
The categories of this paper are: physics
12
The categories of this paper are: nucl-th
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The categories of this paper are: math-ph
1
The categories of this paper are: cs
5
The categories of this paper are: gr-qc
0
The categories of this paper are: hep-ph