Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Universality and the zero-bias conductance of the single-electron
  transistor   The thermal dependence of the electrical conductance of the single-electron
transistor (SET) in the zero-bias Kondo regime is discussed. An exact mapping
to the universal curve for the symmetric Anderson model is established. Linear,
the mapping is parametrized by the Kondo temperature and the charge in the
Kondo cloud. Illustrative numerical renormalization-group results, in excellent
agreement with the mapping, are presented.

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The categories of this paper are: solv-int
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The categories of this paper are: astro-ph
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The categories of this paper are: q-fin
27
The categories of this paper are: comp-gas
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The categories of this paper are: funct-an
12
The categories of this paper are: nucl-th
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The categories of this paper are: econ
9
The categories of this paper are: nlin
8
The categories of this paper are: hep-ex
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The categories of this paper are: nucl-ex
31
The categories of this paper are: ao-sci
28
The categories of this paper are: alg-geom
37
The categories of this paper are: supr-con
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The categories of this paper are: atom-ph
30
The categories of this paper are: q-alg
1
The categories of this paper are: cs