Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Monopoles and hybrids in Abelian projection of lattice QCD   We study topological defects constructed from diagonal and non-diagonal
gluons in Abelian projection of zero temperature lattice QCD. We compare
results obtained in the quenched and non-quenched vacuum field configurations
and show that the density of hybrids is higher than the density of monopoles.
The density of some hybrids is sensitive to the presence of the virtual
fermions.

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The categories of this paper are: supr-con
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The categories of this paper are: funct-an
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The categories of this paper are: patt-sol
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The categories of this paper are: solv-int
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The categories of this paper are: cmp-lg
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The categories of this paper are: alg-geom
2
The categories of this paper are: math
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The categories of this paper are: nlin
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The categories of this paper are: eess
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The categories of this paper are: ao-sci
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The categories of this paper are: mtrl-th
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The categories of this paper are: q-alg
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The categories of this paper are: math-ph
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The categories of this paper are: plasm-ph
4
The categories of this paper are: cond-mat
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The categories of this paper are: dg-ga