Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Diagonal and Hall holographic conductivities dual to a bulk condensate
  of magnetic monopoles   By employing the holographic operator mixing technique to deal with coupled
perturbations in the gauge/gravity duality, I numerically compute the real and
imaginary parts of the diagonal and Hall AC conductivities in a strongly
coupled quantum field theory dual to a bulk condensate of magnetic monopoles.
The results obtained show that a conclusion previously derived in the
literature, namely, the vanishing of holographic DC conductivities in
3-dimensional strongly coupled quantum field theories dual to a 4-dimensional
bulk magnetic monopole condensate, also applies to the calculation of diagonal
and Hall conductivities in the presence of a topological $\theta$-term.
Therefore, the condensation of magnetic monopoles in the bulk is suggested as a
rather general and robust mechanism to generate dual strongly coupled quantum
field theories with zero DC conductivities. The interplay between frequency,
$\theta$-angle and the characteristic mass scale of the monopole condensate on
the results for the conductivities is also investigated.

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The categories of this paper are: funct-an
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The categories of this paper are: comp-gas
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The categories of this paper are: ao-sci
1
The categories of this paper are: cs
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The categories of this paper are: hep-lat
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The categories of this paper are: chao-dyn
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The categories of this paper are: cmp-lg
12
The categories of this paper are: nucl-th
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The categories of this paper are: bayes-an
10
The categories of this paper are: q-bio
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The categories of this paper are: alg-geom
3
The categories of this paper are: physics
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The categories of this paper are: plasm-ph
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The categories of this paper are: dg-ga
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The categories of this paper are: q-alg
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The categories of this paper are: q-fin