Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Phenomenological Z_2 lattice gauge theory of the spin-liquid state of
  the kagome Heisenberg antiferromagnet   We construct a phenomenological Z_2 lattice gauge theory to describe the
spin-liquid state of the S=1/2 kagome Heisenberg antiferromagnet in the sector
with zero total spin. The model is a natural generalization of the
Misguich-Serban-Pasquier Hamiltonian with added interactions that are strongly
constrained by lattice symmetries. We are able to reproduce qualitatively many
of the characteristic features observed in recent numerical studies. We also
make connections to the previous works along similar lines.

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The categories of this paper are: bayes-an
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The categories of this paper are: ao-sci
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The categories of this paper are: patt-sol
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The categories of this paper are: chem-ph
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The categories of this paper are: alg-geom
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The categories of this paper are: q-alg
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The categories of this paper are: q-fin
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The categories of this paper are: cmp-lg
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The categories of this paper are: econ
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The categories of this paper are: physics
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The categories of this paper are: gr-qc
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The categories of this paper are: funct-an
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The categories of this paper are: mtrl-th
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The categories of this paper are: adap-org
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The categories of this paper are: hep-ex
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The categories of this paper are: atom-ph