Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Inhomogeneous phases in the quark-meson model with explicit
  chiral-symmetry breaking   We investigate the existence of inhomogeneous chiral phases in the
quark-meson model with explicit chiral-symmetry breaking. We find that the
inhomogeneous region shrinks with increasing pion masses but survives for the
physical value of m_pi. The instability towards inhomogeneous matter occurs in
the scalar channel, while pseudoscalar modes are disfavored.

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The categories of this paper are: econ
2
The categories of this paper are: math
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The categories of this paper are: stat
25
The categories of this paper are: patt-sol
20
The categories of this paper are: acc-phys
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The categories of this paper are: alg-geom
35
The categories of this paper are: mtrl-th
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The categories of this paper are: hep-th
32
The categories of this paper are: atom-ph
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The categories of this paper are: nlin
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The categories of this paper are: funct-an
3
The categories of this paper are: physics
5
The categories of this paper are: gr-qc
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The categories of this paper are: plasm-ph
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The categories of this paper are: cs
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The categories of this paper are: dg-ga