Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: The short-time behaviour of a kinetic Ashkin-Teller model on the
  critical line   We simulate the kinetic Ashkin-Teller model with both ordered and disordered
initial states, evolving in contact with a heat-bath at the critical
temperature. The power law scaling behaviour for the magnetic order and
electric order are observed in the early time stage. The values of the critical
exponent $\theta$ vary along the critical line. Another dynamical exponent $z$
is also obtained in the process.

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The categories of this paper are: nucl-th
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The categories of this paper are: astro-ph
35
The categories of this paper are: mtrl-th
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The categories of this paper are: math-ph
26
The categories of this paper are: bayes-an
5
The categories of this paper are: gr-qc
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The categories of this paper are: funct-an
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The categories of this paper are: adap-org
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The categories of this paper are: acc-phys
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The categories of this paper are: econ
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The categories of this paper are: atom-ph
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The categories of this paper are: comp-gas
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The categories of this paper are: math
0
The categories of this paper are: hep-ph
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The categories of this paper are: q-fin
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The categories of this paper are: plasm-ph