Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Analytical solutions to zeroth-order dispersion relations of a
  cylindrical metallic nanowire   Zeroth-order complex dispersion relations of a cylindrical metallic nanowire
have been solved out analytically with approximate methods. The analytical
solutions are valid for the sections of the dispersion relations whose
frequencies are close to the Surface Plasmon frequency. The back bending of the
Surface Plasmon-Polaritons(SPPs) can be well described by the analytical
solutions, confirming that the back bending is originated from the metal Ohmic
loss. The utility of the back bending point in the dispersion relation for the
measurement of the metallic Ohimc loss has also been suggested.

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The categories of this paper are: q-fin
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The categories of this paper are: nucl-th
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The categories of this paper are: acc-phys
13
The categories of this paper are: quant-ph
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The categories of this paper are: adap-org
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The categories of this paper are: eess
33
The categories of this paper are: plasm-ph
7
The categories of this paper are: hep-th
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The categories of this paper are: nucl-ex
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The categories of this paper are: nlin
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The categories of this paper are: chao-dyn
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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: q-alg
29
The categories of this paper are: funct-an
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The categories of this paper are: math-ph