Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Conductance scaling of junctions of Luttinger-liquid wires out of
  equilibrium   We develop the renormalization group theory of the conductances of N-lead
junctions of spinless Luttinger-liquid wires as functions of bias voltages
applied to N independent Fermi-liquid reservoirs. Based on the perturbative
results up to second order in the interaction we demonstrate that the
conductances obey scaling. The corresponding renormalization group $\beta$
functions are derived up to second order.

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The categories of this paper are: q-bio
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The categories of this paper are: nucl-th
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The categories of this paper are: eess
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The categories of this paper are: cs
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The categories of this paper are: funct-an
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The categories of this paper are: math
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The categories of this paper are: solv-int
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The categories of this paper are: chao-dyn
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The categories of this paper are: stat
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The categories of this paper are: astro-ph
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The categories of this paper are: cmp-lg
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The categories of this paper are: adap-org
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The categories of this paper are: ao-sci
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The categories of this paper are: hep-lat
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The categories of this paper are: econ
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The categories of this paper are: hep-ex