Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Exact Conductance through Point Contacts in the $\nu =1/3$ Fractional
  Quantum Hall Effect   The conductance for tunneling through a point contact between two $\nu =1/3$
quantum Hall edges is described by a universal scaling function, which has
recently been measured experimentally. We compute this universal function
exactly, by using the thermodynamic Bethe ansatz and a Boltzmann equation.

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The categories of this paper are: math-ph
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The categories of this paper are: hep-ex
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The categories of this paper are: math
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The categories of this paper are: gr-qc
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The categories of this paper are: q-bio
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The categories of this paper are: nlin
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The categories of this paper are: bayes-an
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The categories of this paper are: physics
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The categories of this paper are: hep-lat
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The categories of this paper are: hep-ph
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The categories of this paper are: eess
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The categories of this paper are: solv-int
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The categories of this paper are: q-alg
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The categories of this paper are: quant-ph
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The categories of this paper are: ao-sci
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The categories of this paper are: dg-ga