Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Surface plasmon polaritons in topological Weyl semimetals   We consider theoretically surface plasmon polaritons in Weyl semimetals.
These materials contain pairs of band touching points - Weyl nodes - with a
chiral topological charge, which induces an optical anisotropy and anomalous
transport through the chiral anomaly. We show that these effects, which are not
present in ordinary metals, have a direct fundamental manifestation in the
surface plasmon dispersion. The retarded Weyl surface plasmon dispersion
depends on the separation of the Weyl nodes in energy and momentum space. For
Weyl semimetals with broken time-reversal symmetry, the distance between the
nodes acts as an effective applied magnetic field in momentum space, and the
Weyl surface plasmon polariton dispersion is strikingly similar to
magnetoplasmons in ordinary metals. In particular, this implies the existence
of nonreciprocal surface modes. In addition, we obtain the nonretarded Weyl
magnetoplasmon modes, which acquire an additional longitudinal magnetic-field
dependence. These predicted surface plasmon results are observable
manifestations of the chiral anomaly in Weyl semimetals and might have
technological applications.

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The categories of this paper are: ao-sci
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The categories of this paper are: mtrl-th
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The categories of this paper are: math
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The categories of this paper are: alg-geom
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The categories of this paper are: nlin
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The categories of this paper are: q-bio
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The categories of this paper are: atom-ph
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The categories of this paper are: gr-qc
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The categories of this paper are: comp-gas
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The categories of this paper are: econ
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The categories of this paper are: dg-ga
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The categories of this paper are: math-ph
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The categories of this paper are: physics
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The categories of this paper are: solv-int
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The categories of this paper are: quant-ph
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The categories of this paper are: nucl-th