Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Long-time Behavior for the Stochastic Ising Model with Unbounded Random
  Couplings   We consider the ferromagnetic Ising model with Glauber spin flip dynamics in
one dimension. The external magnetic field vanishes and the couplings are
i.i.d. random variables. If their distribution has compact support, the
disorder averaged spin auto-correlation function has an exponential decay in
time. We prove that, if the couplings are unbounded, the decay switches to
either a power law or a stretched exponential, in general.

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The categories of this paper are: cond-mat
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The categories of this paper are: quant-ph
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The categories of this paper are: nucl-ex
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The categories of this paper are: supr-con
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The categories of this paper are: nlin
25
The categories of this paper are: patt-sol
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The categories of this paper are: astro-ph
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The categories of this paper are: eess
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The categories of this paper are: hep-ex
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The categories of this paper are: q-fin
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The categories of this paper are: hep-th
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The categories of this paper are: mtrl-th
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The categories of this paper are: chao-dyn
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The categories of this paper are: q-alg
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The categories of this paper are: econ
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The categories of this paper are: bayes-an