Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Topological plasmons in dimerized chains of nanoparticles: robustness
  against long-range quasistatic interactions and retardation effects   We present a simple model of collective plasmons in a dimerized chain of
spherical metallic nanoparticles, an elementary example of a topologically
nontrivial nanoplasmonic system. Taking into account long-range quasistatic
dipolar interactions throughout the chain, we provide an exact analytical
expression for the full quasistatic bandstructure of the collective plasmons.
An explicit calculation of the Zak phase proves the robustness of the
topological physics of the system against the inclusion of long-range Coulomb
interactions, despite the broken chiral symmetry. Using an open quantum systems
approach, which includes retardation through the plasmon-photon coupling, we go
on to analytically evaluate the resulting radiative frequency shifts of the
plasmonic spectrum. The bright plasmonic bands experience size-dependent
radiative shifts, while the dark bands are essentially unaffected by the
light-matter coupling. Notably, the upper transverse-polarized band presents a
logarithmic singularity where the quasistatic spectrum intersects the light
cone. At wavevectors away from this intersection and for subwavelength
nanoparticles, the plasmon-photon coupling only leads to a quantitative
reconstruction of the bandstructure and the topologically-protected states at
the edge of the first Brillouin zone are essentially unaffected.

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The categories of this paper are: funct-an
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The categories of this paper are: mtrl-th
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The categories of this paper are: bayes-an
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The categories of this paper are: q-alg
10
The categories of this paper are: q-bio
13
The categories of this paper are: quant-ph
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The categories of this paper are: eess
12
The categories of this paper are: nucl-th
9
The categories of this paper are: nlin
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The categories of this paper are: cmp-lg
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The categories of this paper are: supr-con
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The categories of this paper are: plasm-ph
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The categories of this paper are: math
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The categories of this paper are: hep-ex
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The categories of this paper are: chem-ph
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The categories of this paper are: q-fin