Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Domain Walls in Superfluid 3He-B   We consider domain walls between regions of superfluid 3He-B in which one
component of the order parameter has the opposite sign in the two regions far
from one another. We report calculations of the order parameter profile and the
free energy for two types of domain wall, and discuss how these structures are
relevant to superfluid 3He confined between two surfaces.

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The categories of this paper are: alg-geom
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The categories of this paper are: hep-lat
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The categories of this paper are: stat
15
The categories of this paper are: nucl-ex
8
The categories of this paper are: hep-ex
32
The categories of this paper are: atom-ph
7
The categories of this paper are: hep-th
13
The categories of this paper are: quant-ph
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The categories of this paper are: plasm-ph
2
The categories of this paper are: math
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The categories of this paper are: comp-gas
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The categories of this paper are: patt-sol
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The categories of this paper are: eess
10
The categories of this paper are: q-bio
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The categories of this paper are: cmp-lg
1
The categories of this paper are: cs