Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Universal Amplitude Ratios in the Critical Two-Dimensional Ising Model
  on a Torus   Using results from conformal field theory, we compute several universal
amplitude ratios for the two-dimensional Ising model at criticality on a
symmetric torus. These include the correlation-length ratio x^\star =
\lim_{L\to\infty} \xi(L)/L and the first four magnetization moment ratios
V_{2n} = <{\cal M}^{2n}>/<{\cal M}^2>^n. As a corollary we get the first four
renormalized 2n-point coupling constants for the massless theory on a symmetric
torus, G_{2n}^*. We confirm these predictions by a high-precision Monte Carlo
simulation.

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The categories of this paper are: patt-sol
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The categories of this paper are: q-fin
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The categories of this paper are: funct-an
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The categories of this paper are: stat
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The categories of this paper are: nucl-th
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The categories of this paper are: nlin
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The categories of this paper are: acc-phys
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The categories of this paper are: hep-ph
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The categories of this paper are: bayes-an
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The categories of this paper are: adap-org
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The categories of this paper are: plasm-ph
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The categories of this paper are: atom-ph
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The categories of this paper are: math-ph
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The categories of this paper are: astro-ph
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The categories of this paper are: alg-geom
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The categories of this paper are: eess