Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Ground state properties of Ising chain with random monomer-dimer
  couplings   We study analytically the one-dimensional Ising model with a random binary
distribution of ferromagnetic and antiferromagnetic exchange couplings at zero
temperature. We introduce correlations in the disorder by assigning a dimer of
one type of coupling with probability $x$, and a monomer of the other type with
probability $1-x$. We find that the magnetization behaves differently from the
original binary model. In particular, depending on which type of coupling comes
in dimers, magnetization jumps vanish at a certain set of critical fields. We
explain the results based on the structure of ground state spin configuration.

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The categories of this paper are: alg-geom
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The categories of this paper are: comp-gas
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The categories of this paper are: gr-qc
0
The categories of this paper are: hep-ph
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The categories of this paper are: math-ph
31
The categories of this paper are: ao-sci
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The categories of this paper are: quant-ph
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The categories of this paper are: plasm-ph
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The categories of this paper are: math
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The categories of this paper are: physics
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The categories of this paper are: hep-th
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The categories of this paper are: q-fin
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The categories of this paper are: hep-ex
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The categories of this paper are: hep-lat
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The categories of this paper are: nucl-th
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The categories of this paper are: adap-org