Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Properties of the multicritical point of +/- J Ising spin glasses on the
  square lattice   We use numerical transfer-matrix methods to investigate properties of the
multicriticalpoint of binary Ising spin glasses on a square lattice, whose
location we assume to be given exactly by a conjecture advanced by Nishimori
and Nemoto. We calculate the two largest Lyapunov exponents, as well as linear
and non-linear zero-field uniform susceptibilities, on strip of widths $4 \leq
L \leq 16$ sites, from which we estimate the conformal anomaly $c$, the
decay-of-correlations exponent $\eta$, and the linear and non-linear
susceptibility exponents $\gamma/\nu$ and $\gamma^{nl}/\nu$, with the help of
finite-size scaling and conformal invariance concepts. Our results are:
$c=0.46(1)$; $0.187 \lesssim \eta \lesssim 0.196$; $\gamma/\nu=1.797(5)$;
$\gamma^{nl}/\nu=5.59(2)$. A direct evaluation of correlation functions on the
strip geometry, and of the statistics of the zeroth moment of the associated
probability distribution, gives $\eta=0.194(1)$, consistent with the
calculation via Lyapunov exponents. Overall, these values tend to be
inconsistent with the universality class of percolation, though by small
amounts. The scaling relation $\gamma^{nl}/\nu=2 \gamma/\nu+d$ (with space
dimensionality $d=2$) is obeyed to rather good accuracy, thus showing no
evidence of multiscaling behavior of the susceptibilities.

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The categories of this paper are: physics
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The categories of this paper are: gr-qc
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The categories of this paper are: astro-ph
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The categories of this paper are: ao-sci
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The categories of this paper are: hep-ex
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The categories of this paper are: chem-ph
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The categories of this paper are: quant-ph
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The categories of this paper are: mtrl-th
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The categories of this paper are: econ
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The categories of this paper are: q-alg
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The categories of this paper are: chao-dyn
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The categories of this paper are: cs
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The categories of this paper are: comp-gas
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The categories of this paper are: bayes-an
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The categories of this paper are: plasm-ph
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The categories of this paper are: alg-geom