Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: AC conductivity for a holographic Weyl Semimetal   We study the AC electrical conductivity at zero temperature in a holographic
model for a Weyl semimetal. At small frequencies we observe a linear dependence
in the frequency. The model shows a quantum phase transition between a
topological semimetal (Weyl semimetal phase) with a non vanishing anomalous
Hall conductivity and a trivial semimetal. The AC conductivity has an
intermediate scaling due to the presence of a quantum critical region in the
phase diagram of the system. The phase diagram is reconstructed using the
scaling properties of the conductivity. We compare with the experimental data
of [1502.03807] obtaining qualitative agreement.

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The categories of this paper are: nlin
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The categories of this paper are: hep-lat
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The categories of this paper are: bayes-an
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The categories of this paper are: adap-org
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The categories of this paper are: math
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The categories of this paper are: funct-an
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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: q-fin
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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: astro-ph
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The categories of this paper are: cs
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The categories of this paper are: mtrl-th
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The categories of this paper are: hep-ex
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The categories of this paper are: nucl-ex