Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Effects of near-zero Dirac eigenmodes on axial U(1) symmetry at finite
  temperature   We study the axial U(1)A symmetry of Nf = 2 QCD at finite temperature using
the Dirac eigenvalue spectrum. The gauge configurations are generated employing
the Mobius domain-wall fermion action on 16^3x8 and 32^3x8 lattices. The
physical spatial size of these lattices is around 2 fm and 4 fm, respectively,
and the simulated temperature is around 200 MeV, which is slightly above the
critical temperature of the chiral phase transition. Although the Mobius
domain-wall Dirac operator is expected to have a good chiral symmetry and our
data actually show small values of the residual mass, we observe significant
violation of the Ginsparg-Wilson relation for the low- lying eigenmodes of the
Mobius domain-wall Dirac operator. Using the reweighting technique, we compute
the overlap-Dirac operator spectrum on the same set of configurations and find
a significant difference of the spectrum between the two Dirac operators for
the low-lying eigenvalues. The overlap-Dirac spectrum shows a gap from zero,
which is insensitive to the spacial volume.

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The categories of this paper are: bayes-an
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The categories of this paper are: q-bio
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The categories of this paper are: econ
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The categories of this paper are: alg-geom
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The categories of this paper are: q-fin
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The categories of this paper are: astro-ph
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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: hep-th
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The categories of this paper are: chao-dyn
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The categories of this paper are: physics
4
The categories of this paper are: cond-mat
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The categories of this paper are: solv-int
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The categories of this paper are: cs
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The categories of this paper are: math-ph
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The categories of this paper are: ao-sci